Παραπομπή APA

Strong, E. K. (1955). Vocational interests 18 years after college. Minnesota.

Παραπομπή Chicago Style

Strong, Edward K. Vocational Interests 18 Years After College. Minneapolis: Minnesota, 1955.

Παραπομπή MLA

Strong, Edward K. Vocational Interests 18 Years After College. Minnesota, 1955.