APA (7th ed.) Citation

Witten, L. (1959). The earliest books printed in Spain. Bibliographical Society of America.

Chicago Style (17th ed.) Citation

Witten, Laurence. The Earliest Books Printed in Spain. New York: Bibliographical Society of America, 1959.

MLA (9th ed.) Citation

Witten, Laurence. The Earliest Books Printed in Spain. Bibliographical Society of America, 1959.

Warning: These citations may not always be 100% accurate.