Gaya APA
SMITH, T. Lynn, ZOPF, Paul E.. (1970).
Demography : Principles and Methods .
Philadelphia:
F. A. Davis company.
Gaya Chicago
SMITH, T. Lynn, ZOPF, Paul E..
Demography : Principles and Methods.
Philadelphia:
F. A. Davis company,
1970.
.
Gaya MLA
SMITH, T. Lynn, ZOPF, Paul E..
Demography : Principles and Methods.
Philadelphia:
F. A. Davis company,
1970.
.
Gaya Turabian
SMITH, T. Lynn, ZOPF, Paul E..
Demography : Principles and Methods.
Philadelphia:
F. A. Davis company,
1970.
.