APA (7 ম সংস্করণ) উদ্ধৃতি

Welch, W. W. (1971). A summary of research in science education for the years of 1968-69 secondary school level. ERIC.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Welch, Wayne W. A Summary of Research in Science Education for the Years of 1968-69 Secondary School Level. Ohio, Estados Unidos: ERIC, 1971.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Welch, Wayne W. A Summary of Research in Science Education for the Years of 1968-69 Secondary School Level. ERIC, 1971.