Παραπομπή APA

Collison, R. (1966). Encyclopaedias: Their History throughout the ages (2nd (1st 1964).). Hafner Publishing Company.

Παραπομπή Chicago Style

Collison, Robert. Encyclopaedias: Their History Throughout the Ages. 2nd (1st 1964). London: Hafner Publishing Company, 1966.

Παραπομπή MLA

Collison, Robert. Encyclopaedias: Their History Throughout the Ages. 2nd (1st 1964). Hafner Publishing Company, 1966.