Description: Modern Operational Mathematics in Engineering by Ruel V. Churchill ~ 1944 (First Edition / Sixth Impression) 306 pages Elementary Differential Equations by Lyman Kells, Ph.D. ~ 1935 (Second Edition / Third Impression) 248 pages ~ ~ ~ ~ ~Both books are in Good Vintage Condition with yellowing of pages commensurate with age. Previous owners name on first page. Some annotations, mostly very small, light, penciled notes in areas. All pages intact, no tears or missing pages noted. Covers in good condition with minor shelf wear. Please closely examine all photos. ~ ~ ~ ~ ~ USPS shipping often "Ground Advantage" (or "Media Mail" if authorized) is used in order to lower your overall cost. I typically ship within one or two days of receiving your payment; however, total transit time may vary greatly. Most of the time, the US Postal System is reasonably fast, sometimes amazingly so. That said, at times it can mysteriously take 8 to 10 days after I deliver your package to my Post Office. If this happens, please understand that it is out of my control. In many cases (and depending on the size of your item) I will include a Priority Mail link in the shipping options to which you may wish to upgrade if you would like to receive your purchase quicker than than standard service. Contact me if you would like to explore other shipping options. Again... please closely examine all photos, and request more photos if necessary. The item you see in the listing photos is the item you will receive. Your satisfaction in this purchase is my number one goal. Please ask any questions you may have prior to purchasing. Got a problem? I try to make my listing descriptions accurate and use detailed photos.However, if you believe I have make a mistake in my description, or there are any other issues, just contact me and I will do my best to make it right.
Price: 19.95 USD
Location: Federal Way, Washington
End Time: 2024-11-19T21:08:34.000Z
Shipping Cost: 5.38 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Language: English
Signed: No
Author: Ruel V. Churchill and Lyman Kells
Publisher: McGraw Hill
Topic: Mathematics
Country/Region of Manufacture: United States
Subject: Science & Medicine
