APA استشهاد

Allen, P. W. (1972). Natural rubber and the synthetics. C. Lockwood.

استشهاد بنمط شيكاغو

Allen, Peter William. Natural Rubber and the Synthetics. London: C. Lockwood, 1972.

MLA استشهاد

Allen, Peter William. Natural Rubber and the Synthetics. C. Lockwood, 1972.