APA

Tinbergen J., . (1975). Income differences. Amsterdam [u.a.]: North-Holland Publ. [u.a.].

Chicago

Tinbergen Jan, . 1975. Income differences. Amsterdam [u.a.]: North-Holland Publ. [u.a.].

Harvard

Tinbergen J., . (1975). Income differences. Amsterdam [u.a.]: North-Holland Publ. [u.a.].

MLA

Tinbergen Jan, . Income differences. Amsterdam [u.a.]: North-Holland Publ. [u.a.]. 1975.