APA aipamena

Wentz, C. A. (1999). Safety, health and environmental protection. Boston: McGraw-Hill.

Chicago Style aipamena

Wentz, Charles A. Safety, Health and Environmental Protection. Boston: McGraw-Hill, 1999.

MLA aipamena

Wentz, Charles A. Safety, Health and Environmental Protection. Boston: McGraw-Hill, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.