APA ציטוט

KELLER J J. (2001). SAFETY MANAGER'S HANDBOOK. J.J KELLER & ASOCIATES , INC.

Chicago Style (17th ed.) Citation

KELLER J J. SAFETY MANAGER'S HANDBOOK. WISCONSIN: J.J KELLER & ASOCIATES , INC, 2001.

ציטוט MLA

KELLER J J. SAFETY MANAGER'S HANDBOOK. J.J KELLER & ASOCIATES , INC, 2001.