Lua APA (7ú heag.)
Callicott, J. B. (1987). Companion to A Sand County almanac: Interpretive & critical essays. Univ. Of Wisconsin Press.
Lua i Stíl Chicago (17ú heag.)
Callicott, J. Baird. Companion to A Sand County Almanac: Interpretive & Critical Essays. Madison, Wis.: Univ. Of Wisconsin Press, 1987.
Lua MLA (9ú heag.)
Callicott, J. Baird. Companion to A Sand County Almanac: Interpretive & Critical Essays. Univ. Of Wisconsin Press, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.