APA-viite

Julia & Derek Parker. (2001). Parkers' Astrology: The essential guide to using astrology in your daily life. Dorling Kindersley.

Chicago-tyylinen lähdeviittaus

Julia ja Derek Parker. Parkers' Astrology: The Essential Guide to Using Astrology in Your Daily Life. London: Dorling Kindersley, 2001.

MLA-viite

Julia ja Derek Parker. Parkers' Astrology: The Essential Guide to Using Astrology in Your Daily Life. Dorling Kindersley, 2001.