APA Citation

Estados Unidos. Employment Service, & Estados Unidos. Employment Service. (1977). Dictionary of occupational titles (4. edition --.). Washington: The Service.

Chicago Style Citation

Estados Unidos. Employment Service, and Estados Unidos. Employment Service. Dictionary of Occupational Titles. 4. edition --. Washington: The Service, 1977.

MLA Citation

Estados Unidos. Employment Service, and Estados Unidos. Employment Service. Dictionary of Occupational Titles. 4. edition --. Washington: The Service, 1977.

Warning: These citations may not always be 100% accurate.