APA (7th ed.) Citation

Rydge Publications & Benjamin, G. (1971). Rydge's office equipment buyer's guide, 1971-72. Rydge Publications.

Chicago Style (17th ed.) Citation

Rydge Publications and Gillian Benjamin. Rydge's Office Equipment Buyer's Guide, 1971-72. Sydney: Rydge Publications, 1971.

MLA (8th ed.) Citation

Rydge Publications and Gillian Benjamin. Rydge's Office Equipment Buyer's Guide, 1971-72. Rydge Publications, 1971.