Cita APA

Comp. (1973). General encyclopedias in print [1973-1974]. R R Bowker.

Chicago Edition Citation

Comp. General Encyclopedias in Print [1973-1974]. New York: R R Bowker, 1973.

Cita MLA

Comp. General Encyclopedias in Print [1973-1974]. R R Bowker, 1973.