APA

Harper R., Bate-Smith E. C. & Land D. G. (1968). Odour description and odour classification: a multidisciplinary examination. New York: American Elsevier Pub. Co.

Chicago

Harper Roland, Bate-Smith Edgar Charles and Land D G. 1968. Odour description and odour classification: a multidisciplinary examination. New York: American Elsevier Pub. Co.

Harvard

Harper R., Bate-Smith E. C. and Land D. G. (1968). Odour description and odour classification: a multidisciplinary examination. New York: American Elsevier Pub. Co.

MLA

Harper Roland, Bate-Smith Edgar Charles and Land D G. Odour description and odour classification: a multidisciplinary examination. New York: American Elsevier Pub. Co. 1968.