Cita APA (7a ed.)

Toens, D. (1966). Precambrian dolomite and limestone of the Northern Cape Province. Govt. Printer.

Cita Chicago Style (17a ed.)

Toens, Dennis. Precambrian Dolomite and Limestone of the Northern Cape Province. Pretoria: Govt. Printer, 1966.

Cita MLA (8a ed.)

Toens, Dennis. Precambrian Dolomite and Limestone of the Northern Cape Province. Govt. Printer, 1966.