Gaya APA
Broek, J, O, &, J, W. (1978).
A geography of mankind, 3rd ed. Cet.pertama 1968. .
New York dsl:
McGraw-Hill Book Co.
Gaya MLA
Broek, Jan, O.M., &, John, W.Webb..
"A geography of mankind, 3rd ed. Cet.pertama 1968. ".
New York dsl:
McGraw-Hill Book Co,
1978.
Buku.