Gaya APA

Calabrese, E, J., KNAPP, C, A, E, P, H. (1978). Methodological Approaches to Deriving Environmental and Occupational Health Standards . Toronto, USA: John Wiley and Son. Inc.

Gaya MLA

Calabrese, Edward, J.., KNAPP, CLYDE, And, E., PATRICIA, HAGMAN. "Methodological Approaches to Deriving Environmental and Occupational Health Standards". Toronto, USA: John Wiley and Son. Inc, 1978. Text.