APA-Zitierstil (7. Ausg.)

(1977). Directory of national unions and employee associations (1975.). U. S. Government Print. Off.

Chicago-Zitierstil (17. Ausg.)

Directory of National Unions and Employee Associations. 1975. Washington, DC: U. S. Government Print. Off, 1977.

MLA-Zitierstil (9. Ausg.)

Directory of National Unions and Employee Associations. 1975. U. S. Government Print. Off, 1977.