APA

Allport G. W., Vernon P. E., . (1931). A study of values: a scale for measuring the dominant interests in personality. Boston: Houghton Mifflin Co.

Chicago

Allport Gordon Willard, Vernon Philip Ewart, . 1931. A study of values: a scale for measuring the dominant interests in personality. Boston: Houghton Mifflin Co.

Harvard

Allport G. W., Vernon P. E., . (1931). A study of values: a scale for measuring the dominant interests in personality. Boston: Houghton Mifflin Co.

MLA

Allport Gordon Willard, Vernon Philip Ewart, . A study of values: a scale for measuring the dominant interests in personality. Boston: Houghton Mifflin Co. 1931.