APA (7th ed.) Citation

Du Toit, R. (1942). External parasites of sheep. Printed by the Government Printer.

Chicago Style (17th ed.) Citation

Du Toit, R. External Parasites of Sheep. Pretoria: Printed by the Government Printer, 1942.

MLA (9th ed.) Citation

Du Toit, R. External Parasites of Sheep. Printed by the Government Printer, 1942.

Warning: These citations may not always be 100% accurate.