APA (7th ed.) Citation

266176 Hawthorne, V. T. (1972). Hopper car door lock. Mechanicsburg, PA : Keystone Ind.

Chicago Style (17th ed.) Citation

266176 Hawthorne, Vaughn T. Hopper Car Door Lock. Mechanicsburg, PA : Keystone Ind, 1972.

MLA (9th ed.) Citation

266176 Hawthorne, Vaughn T. Hopper Car Door Lock. Mechanicsburg, PA : Keystone Ind, 1972.

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