APA (7th ed.) Citation

Billig, F. G. (1972). A technique for developing content for a professional course in science for teachers in elementary schools (Repr. of the 1930 ed. New York.). AMS Press.

Chicago Style (17th ed.) Citation

Billig, Florence Grace. A Technique for Developing Content for a Professional Course in Science for Teachers in Elementary Schools. Repr. of the 1930 ed. New York. New York: AMS Press, 1972.

MLA (9th ed.) Citation

Billig, Florence Grace. A Technique for Developing Content for a Professional Course in Science for Teachers in Elementary Schools. Repr. of the 1930 ed. New York. AMS Press, 1972.