Gaya APA
Vaupel, James W, Lutz, Wolfgang, Ahlburg, Dennis A. (1999).
Frontiers of population forecasting .
New York:
Population Council.
Gaya Chicago
Vaupel, James W, Lutz, Wolfgang, Ahlburg, Dennis A.
Frontiers of population forecasting.
New York:
Population Council,
1999.
Text.
Gaya MLA
Vaupel, James W, Lutz, Wolfgang, Ahlburg, Dennis A.
Frontiers of population forecasting.
New York:
Population Council,
1999.
Text.
Gaya Turabian
Vaupel, James W, Lutz, Wolfgang, Ahlburg, Dennis A.
Frontiers of population forecasting.
New York:
Population Council,
1999.
Print.