APA-Zitierstil (7. Ausg.)

Fawcett, H. P. (1938). The nature of proof: A description and evaluation of certain procedures used in a senior high school to develop an understanding of the nature of proof. Bureau of Publ., Teachers College, Columbia Univ.

Chicago-Zitierstil (17. Ausg.)

Fawcett, Harold P. The Nature of Proof: A Description and Evaluation of Certain Procedures Used in a Senior High School to Develop an Understanding of the Nature of Proof. New York: Bureau of Publ., Teachers College, Columbia Univ, 1938.

MLA-Zitierstil (9. Ausg.)

Fawcett, Harold P. The Nature of Proof: A Description and Evaluation of Certain Procedures Used in a Senior High School to Develop an Understanding of the Nature of Proof. Bureau of Publ., Teachers College, Columbia Univ, 1938.