APA (7 ম সংস্করণ) উদ্ধৃতি

williams,richard tecwyn,ed. (1955). the biochemistry of vitamin b12,a symposium held at the london school of hygiene and tropical williams,richard tecwyn(ed.).

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

williams,richard tecwyn,ed. The Biochemistry of Vitamin B12,a Symposium Held at the London School of Hygiene and Tropical Williams,richard Tecwyn(ed.). 1st.ed. | .London Cambridge University, 1955.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

williams,richard tecwyn,ed. The Biochemistry of Vitamin B12,a Symposium Held at the London School of Hygiene and Tropical Williams,richard Tecwyn(ed.). 1955.