Παραπομπή APA

Bortolon, L. (1967). life and times of Leonardo: Test. The curtis.

Παραπομπή Chicago Style

Bortolon, Liana. Life and Times of Leonardo: Test. New York: The curtis, 1967.

Παραπομπή MLA

Bortolon, Liana. Life and Times of Leonardo: Test. The curtis, 1967.