APA استشهاد

Stevens, E. F., & Butterfield, C. S. J. (1978). Shipping Practice (10th ed.). Pitman.

استشهاد بنمط شيكاغو

Stevens, Edward Frank, و C. S. J. Butterfield. Shipping Practice. 10th ed. London: Pitman, 1978.

MLA استشهاد

Stevens, Edward Frank, و C. S. J. Butterfield. Shipping Practice. 10th ed. Pitman, 1978.