एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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