APA-referens (7:e uppl.)

PORTER, H. W., LAWSHE, C. H., & LASCOE, O. D. (1965). Machine shop: Operations and setups. American Technical Society.

Chicago-referens (17:e uppl.)

PORTER, Harold W., Charles H. LAWSHE, och Orville D. LASCOE. Machine Shop: Operations and Setups. Chocago: American Technical Society, 1965.

MLA-referens (9:e uppl.)

PORTER, Harold W., et al. Machine Shop: Operations and Setups. American Technical Society, 1965.