APA aipamena

Knouff, W. C. (1961). Everyday Art. The American Crajon Company Sandusky.

Chicago Style aipamena

Knouff, W. Cyrus. Everyday Art. The American Crajon Company Sandusky, 1961.

MLA aipamena

Knouff, W. Cyrus. Everyday Art. The American Crajon Company Sandusky, 1961.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.