APA (7th ed.) Citation

Hedges, W. D. (1977). At what age should children enter first grade: A comprehensive review of the research. Published for Florida Educational Research and Development Council by University Microfilms International.

Chicago Style (17th ed.) Citation

Hedges, William D. At What Age Should Children Enter First Grade: A Comprehensive Review of the Research. Ann Arbor, Mich.: Published for Florida Educational Research and Development Council by University Microfilms International, 1977.

MLA (9th ed.) Citation

Hedges, William D. At What Age Should Children Enter First Grade: A Comprehensive Review of the Research. Published for Florida Educational Research and Development Council by University Microfilms International, 1977.