एपीए उद्धरण

Allison, R. J. (2002). Applied geomorphology theory and practice. John Wiley & Sons.

शिकागो स्टाइल उद्धरण

Allison, R. J. Applied Geomorphology Theory and Practice. West Sussex, England: John Wiley & Sons, 2002.

एमएलए उद्धरण

Allison, R. J. Applied Geomorphology Theory and Practice. John Wiley & Sons, 2002.