Gaya APA

Allen, P, S., Swanson, C, P. (1977). Beginnings of interior environment . Utah: Utah: Brigham Young University Press; 1977.

Gaya MLA

Allen, Phyllis, Sloan., Swanson, Carl, P.. "Beginnings of interior environment". Utah: Utah: Brigham Young University Press; 1977, 1977. Text.