Lua APA (7ú heag.)

- & KNAPP, B. [. (1981). Practical foundations of physical geograpgy. George Allaen and Unwin.

Lua i Stíl Chicago (17ú heag.)

- agus Brian [Ed.] KNAPP. Practical Foundations of Physical Geograpgy. London: George Allaen and Unwin, 1981.

Lua MLA (9ú heag.)

- agus Brian [Ed.] KNAPP. Practical Foundations of Physical Geograpgy. George Allaen and Unwin, 1981.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.