Cita APA

Downs, R. B. (1978). Books that changed the world (2nd ed.). American Library Association.

Citación estilo Chicago

Downs, Robert Bingham. Books That Changed the World. 2nd ed. Chicago: American Library Association, 1978.

Cita MLA

Downs, Robert Bingham. Books That Changed the World. 2nd ed. American Library Association, 1978.

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