APA (7e ed.) Bronvermelding
Callicott, J. B. (1987). Companion to A Sand County almanac: Interpretive & critical essays. Univ. Of Wisconsin Press.
Chicago (17e ed.) Bronvermelding
Callicott, J. Baird. Companion to A Sand County Almanac: Interpretive & Critical Essays. Madison, Wis.: Univ. Of Wisconsin Press, 1987.
MLA (9e ed.) Bronvermelding
Callicott, J. Baird. Companion to A Sand County Almanac: Interpretive & Critical Essays. Univ. Of Wisconsin Press, 1987.
Let op: Deze citaties zijn niet altijd 100% accuraat.