APA (7th ed.) Citation

Salter, J. (1992). The director?s guide to environmental issues. Director Books.

Chicago Style (17th ed.) Citation

Salter, John. The Director?s Guide to Environmental Issues. Hemel Hempstead (Gran Bretaña): Director Books, 1992.

MLA (9th ed.) Citation

Salter, John. The Director?s Guide to Environmental Issues. Director Books, 1992.