Gaya APA
Peters, G, L., Larkin, R, P. (1983).
Population geography : problems, concepts, and prospects (2nd ed).
Dubuque, IO:
Kendall/Hunt.
Gaya MLA
Peters, Gary, L.., Larkin, Robert, P..
"Population geography : problems, concepts, and prospects".
2nd ed
Dubuque, IO:
Kendall/Hunt,
1983.
Text.