APA استشهاد

Karmel, P. H. (1970). Applied statistics for economists (3rd.). Pitman.

استشهاد بنمط شيكاغو

Karmel, P H. Applied Statistics for Economists. 3rd. London: Pitman, 1970.

MLA استشهاد

Karmel, P H. Applied Statistics for Economists. 3rd. Pitman, 1970.