APA

Blalock H. M., Blalock A. B., . (1971). Methodology in social research. London [u.a.]: McGraw-Hill [u.a.].

Chicago

Blalock Hubert M, Blalock Ann B, . 1971. Methodology in social research. London [u.a.]: McGraw-Hill [u.a.].

Harvard

Blalock H. M., Blalock A. B., . (1971). Methodology in social research. London [u.a.]: McGraw-Hill [u.a.].

MLA

Blalock Hubert M, Blalock Ann B, . Methodology in social research. London [u.a.]: McGraw-Hill [u.a.]. 1971.