APA (7th ed.) Citation

Aitken, R. D., & Gale, G. W. (1921). Botanical survey of Natal and Zululand. Gov. Print. and Stationery Off.

Chicago Style (17th ed.) Citation

Aitken, R. D., and George W. Gale. Botanical Survey of Natal and Zululand. Pretoria: Gov. Print. and Stationery Off, 1921.

MLA (9th ed.) Citation

Aitken, R. D., and George W. Gale. Botanical Survey of Natal and Zululand. Gov. Print. and Stationery Off, 1921.

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