APA Zitierstil

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

Chicago Zitierstil

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

MLA Zitierstil

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