APA

Hammer A. L., . (1993). Introduction to type and careers. Oxford: Oxford Psychologists Press.

Chicago

Hammer Allen L, . 1993. Introduction to type and careers. Oxford: Oxford Psychologists Press.

Harvard

Hammer A. L., . (1993). Introduction to type and careers. Oxford: Oxford Psychologists Press.

MLA

Hammer Allen L, . Introduction to type and careers. Oxford: Oxford Psychologists Press. 1993.