APA (7th ed.) Citation

(1993). The world environment: 1972 - 1992 ; two decades of challenge (1. ed.). Chapman & Hall.

Chicago Style (17th ed.) Citation

The World Environment: 1972 - 1992 ; Two Decades of Challenge. 1. ed. London u.a: Chapman & Hall, 1993.

MLA (9th ed.) Citation

The World Environment: 1972 - 1992 ; Two Decades of Challenge. 1. ed. Chapman & Hall, 1993.