APA-čujuhus (7. p.)

BABBIE, E. (1983). The practice of social research.-- ed.3. Wadsworth.

Chicago-čujuhus (17. p.)

BABBIE, Earl. The Practice of Social Research.-- Ed.3. California: Wadsworth, 1983.

MLA-čujuhus (9. p.)

BABBIE, Earl. The Practice of Social Research.-- Ed.3. Wadsworth, 1983.

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