Cita APA (7th ed.)

Mueller, G. W., & Robertson, E. C. 1. . . .. (1948). Fundamentals of health and safety. D. Van Nostrand Co.

Cita Chicago (17th ed.)

Mueller, Grover William, i Elizabeth Chant 1890- Robertson. Fundamentals of Health and Safety. New York: D. Van Nostrand Co, 1948.

Cita MLA (9th ed.)

Mueller, Grover William, i Elizabeth Chant 1890- Robertson. Fundamentals of Health and Safety. D. Van Nostrand Co, 1948.