Unknown creator; St. Louis University; Parks College of Saint Louis University. (1941). Parks College industrial machine shop.
Citação do estilo Chicago (17ª ed.)Unknown creator; St. Louis University; Parks College of Saint Louis University. Parks College Industrial Machine Shop. 1941.
Citação MLA (8ª ed.)Unknown creator; St. Louis University; Parks College of Saint Louis University. Parks College Industrial Machine Shop. 1941.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.