APA (7th ed.) Citation

Huntley, B. J., Siegfried, R., & Sunter, C. (1990). South African environments into the 21st century (2. impr.). Human & Rousseau [u.a.].

Chicago Style (17th ed.) Citation

Huntley, Brian J., Roy Siegfried, and Clem Sunter. South African Environments into the 21st Century. 2. impr. Cape Town: Human & Rousseau [u.a.], 1990.

MLA (9th ed.) Citation

Huntley, Brian J., et al. South African Environments into the 21st Century. 2. impr. Human & Rousseau [u.a.], 1990.