Παραπομπή APA

Kowaalik, J. (1968). Methods for unconstrained optimization problems. American elsevier publishing company.

Παραπομπή Chicago Style

Kowaalik, J. Methods for Unconstrained Optimization Problems. New York: American elsevier publishing company, 1968.

Παραπομπή MLA

Kowaalik, J. Methods for Unconstrained Optimization Problems. American elsevier publishing company, 1968.