Παραπομπή APA

Allen, P. W. (1972). Natural Rubber and the Synthetics. Crosby Lockwood.

Παραπομπή Chicago Style

Allen, P W. Natural Rubber and the Synthetics. London: Crosby Lockwood, 1972.

Παραπομπή MLA

Allen, P W. Natural Rubber and the Synthetics. Crosby Lockwood, 1972.