Merkoša sitáhtat

APA-čujuhus (7. p.)
Wendel, H. (2004). Vital statistics of the United States. Bernan Associates.
Chicago-čujuhus (17. p.)
Wendel, Helmut. Vital Statistics of the United States. Lanham, MD: Bernan Associates, 2004.
MLA-čujuhus (9. p.)
Wendel, Helmut. Vital Statistics of the United States. Bernan Associates, 2004.
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