Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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