एपीए उद्धरण

Gopal. (2004). Charlie Chaplin: Jeevithavum cinemayum. Pranatha Books.

शिकागो स्टाइल उद्धरण

Gopal. Charlie Chaplin: Jeevithavum Cinemayum. Cochin: Pranatha Books, 2004.

एमएलए उद्धरण

Gopal. Charlie Chaplin: Jeevithavum Cinemayum. Pranatha Books, 2004.