Παραπομπή APA

Boulenger, E. G. (1925). Aquarium book. Gerald duckworth.

Παραπομπή Chicago Style

Boulenger, E. G. Aquarium Book. London: Gerald duckworth, 1925.

Παραπομπή MLA

Boulenger, E. G. Aquarium Book. Gerald duckworth, 1925.