APA استشهاد

Ryzin, J. V. (1977). Classification and clustering [Proceedings]. Academic Press.

استشهاد بنمط شيكاغو

Ryzin, J. Van. Classification and Clustering [Proceedings]. New York: Academic Press, 1977.

MLA استشهاد

Ryzin, J. Van. Classification and Clustering [Proceedings]. Academic Press, 1977.