APA (7th ed.) Citation

Slusser, G. E. (1977). The classic years of Robert A. Heinlein. Borgo Press.

Chicago Style (17th ed.) Citation

Slusser, George Edgar. The Classic Years of Robert A. Heinlein. San Bernardino, Calif.: Borgo Press, 1977.

MLA (9th ed.) Citation

Slusser, George Edgar. The Classic Years of Robert A. Heinlein. Borgo Press, 1977.