एपीए उद्धरण

(1868). Langsenkamp processing equipment for the food and chemical industries. Indianapolis, Indiana: F.H Landsenkamp Company.

शिकागो स्टाइल उद्धरण

Langsenkamp Processing Equipment for the Food and Chemical Industries. Indianapolis, Indiana: F.H Landsenkamp Company, 1868.

एमएलए उद्धरण

Langsenkamp Processing Equipment for the Food and Chemical Industries. Indianapolis, Indiana: F.H Landsenkamp Company, 1868.