APA

Ostrov R., . (1999). Solving skin problems. USA: Time Life Books.

Chicago

Ostrov Ricki, . 1999. Solving skin problems. USA: Time Life Books.

Harvard

Ostrov R., . (1999). Solving skin problems. USA: Time Life Books.

MLA

Ostrov Ricki, . Solving skin problems. USA: Time Life Books. 1999.