Smith, R. L., & Smith, N. (1966). Ecology and field biology. New York: Harper and Row.
Παραπομπή Chicago StyleSmith, Robert Leo, and Ned Smith. Ecology and Field Biology. New York: Harper and Row, 1966.
Παραπομπή MLASmith, Robert Leo, and Ned Smith. Ecology and Field Biology. New York: Harper and Row, 1966.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.