APA (7th ed.) Citation

Unesco, International Biological Programme, & Phillipson, J. (1970). Methods of study in soil ecology: Proceedings of the Paris symposium organized by Unesco and the International Biological Programme. Unesco.

Chicago Style (17th ed.) Citation

Unesco, International Biological Programme, and John Phillipson. Methods of Study in Soil Ecology: Proceedings of the Paris Symposium Organized by Unesco and the International Biological Programme. Paris: Unesco, 1970.

MLA (9th ed.) Citation

Unesco, et al. Methods of Study in Soil Ecology: Proceedings of the Paris Symposium Organized by Unesco and the International Biological Programme. Unesco, 1970.