How Did We Find Out About Neptune?

From Author Wars - https://authorwars.com/books/how-did-we-find-out-about-neptune-3020400.html

Overview:

Title: How Did We Find Out About Neptune?
Author: Erika Kors
Year: 1990
Type: Interior Art

Editions/Publications:

Unknown. How Did We Find Out About Neptune? (Unknown, Erika Kors, Walker & Co., ISBN-10: 0802769810, 59 pages, Hardcover, Non-fiction)
Unknown. How Did We Find Out About Neptune? (Unknown, Erika Kors, Walker & Co., ISBN-10: 0802769829, 59 pages, Hardcover, Non-fiction)