Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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