National Commission on Cooperative Curriculum Planning. (1941). The Subject fields in general education. D. Appleton-Century.
Citação do estilo Chicago (17ª ed.)National Commission on Cooperative Curriculum Planning. The Subject Fields in General Education. New York: D. Appleton-Century, 1941.
Citação MLA (9ª ed.)National Commission on Cooperative Curriculum Planning. The Subject Fields in General Education. D. Appleton-Century, 1941.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.