Gaya APA

Poucher, W, A., Jouhar, A. (1991). Poucher`s perfeumes, cosmetics and soaps volume : the raw materials of perfumery (Ed.9). London: Chapman \\n Hall.

Gaya MLA

Poucher, W., A.., Jouhar, A.J.. "Poucher`s perfeumes, cosmetics and soaps volume : the raw materials of perfumery". Ed.9 London: Chapman \\n Hall, 1991. Text.