APA (7th ed.) Citation

Lemaître, J. (1971). On the margins of old books. Books for Libraries Press.

Chicago Style (17th ed.) Citation

Lemaître, Jules. On the Margins of Old Books. Freeport, N.Y.: Books for Libraries Press, 1971.

MLA (9th ed.) Citation

Lemaître, Jules. On the Margins of Old Books. Books for Libraries Press, 1971.