एपीए उद्धरण

Kulp, W. L., & Rettger, L. F. (1924). Comparative Study of Lactobacillus acidophilus and Lactobacillus bulgaricus.

शिकागो स्टाइल उद्धरण

Kulp, Walter L., और Leo F. Rettger. Comparative Study of Lactobacillus Acidophilus and Lactobacillus Bulgaricus. 1924.

एमएलए उद्धरण

Kulp, Walter L., और Leo F. Rettger. Comparative Study of Lactobacillus Acidophilus and Lactobacillus Bulgaricus. 1924.