APA Citatie

Thien, S. J., & Graveel, J. G. (1997). Laboratory manual for soil science: Agricultural and environmental principles. Boston: McGraw-Hill.

Chicago Style citaat

Thien, Steven J., en John G. Graveel. Laboratory Manual for Soil Science: Agricultural and Environmental Principles. Boston: McGraw-Hill, 1997.

MLA citatie

Thien, Steven J., en John G. Graveel. Laboratory Manual for Soil Science: Agricultural and Environmental Principles. Boston: McGraw-Hill, 1997.