Παραπομπή APA
Klimm, L. E. 1., Starkey, O. P. 1., & Hall, N. F. (1940). Introductory economic geography (2nd ed.). New York: Harcourt, Brace and company.
Παραπομπή Chicago StyleKlimm, Lester Earl 1902-1960., Otis P. 1906- Starkey, and Norman Foster Hall. Introductory Economic Geography. 2nd ed. New York: Harcourt, Brace and company, 1940.
Παραπομπή MLAKlimm, Lester Earl 1902-1960., Otis P. 1906- Starkey, and Norman Foster Hall. Introductory Economic Geography. 2nd ed. New York: Harcourt, Brace and company, 1940.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.