APA (7 ম সংস্করণ) উদ্ধৃতি

Verwoerd, W. J. (1957). The mineralogy and genesis of the lead-zinc-vanadium deposit of Abenab West in the Otavi Mountains, South West Africa. [University of Stellenbosch].

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Verwoerd, W. J. The Mineralogy and Genesis of the Lead-zinc-vanadium Deposit of Abenab West in the Otavi Mountains, South West Africa. Stellenbosch: [University of Stellenbosch], 1957.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Verwoerd, W. J. The Mineralogy and Genesis of the Lead-zinc-vanadium Deposit of Abenab West in the Otavi Mountains, South West Africa. [University of Stellenbosch], 1957.