APA aipamena

WICK'S, W. (1998). OPTICAL TRICKS. SCHOLASTIC INS.

Chicago Style aipamena

WICK'S, WALTER. OPTICAL TRICKS. SCHOLASTIC INS, 1998.

MLA aipamena

WICK'S, WALTER. OPTICAL TRICKS. SCHOLASTIC INS, 1998.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.