Παραπομπή APA

Votaw, D. F., & Levinson, H. S. (1962). Elementary sampling for traffic engineers. Saugatuck: Eno Foundation for Highway Traffic Control.

Παραπομπή Chicago Style

Votaw, David F., and Herbert S. Levinson. Elementary Sampling for Traffic Engineers. Saugatuck: Eno Foundation for Highway Traffic Control, 1962.

Παραπομπή MLA

Votaw, David F., and Herbert S. Levinson. Elementary Sampling for Traffic Engineers. Saugatuck: Eno Foundation for Highway Traffic Control, 1962.

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