APA (7th ed.) Citation

Pole Evans, I. B. The flowering plants of South Africa; vol. 1.

Chicago Style (17th ed.) Citation

Pole Evans, I. B. The Flowering Plants of South Africa; Vol. 1.

MLA (9th ed.) Citation

Pole Evans, I. B. The Flowering Plants of South Africa; Vol. 1.

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