Gaya APA

HATHAWAY, Gloria J, PROCTOR, Nich H, HUGHES, James P. (1991). Proctor and Hughes: Chemical hazards of the workplace . New York: Van Nostrand Reinhold Company.

Gaya Chicago

HATHAWAY, Gloria J, PROCTOR, Nich H, HUGHES, James P. Proctor and Hughes: Chemical hazards of the workplace. New York: Van Nostrand Reinhold Company, 1991. Buku Text.

Gaya MLA

HATHAWAY, Gloria J, PROCTOR, Nich H, HUGHES, James P. Proctor and Hughes: Chemical hazards of the workplace. New York: Van Nostrand Reinhold Company, 1991. Buku Text.

Gaya Turabian

HATHAWAY, Gloria J, PROCTOR, Nich H, HUGHES, James P. Proctor and Hughes: Chemical hazards of the workplace. New York: Van Nostrand Reinhold Company, 1991. Buku Text.