Bidspirit auction | Invasion of Earth + The

Invasion of Earth + The Force - Two Sci-Fi Books Bound Together - A volume with two volumes, each side with a cover and title page: 1. Invasion of Earth, by Robert A. Heinlein. 2. The Force, a journey to fear. by Frank M. Robinson. Matzpen Publishing, Tel Aviv, 1952. 191 + 176 pp., 15X10 cm. Good-fair condition: wear and tears on the cover; hole punched in the corners up to page 32 of ”Invasion of Earth”.