APA (7e ed.) Bronvermelding

Education, N. C. W. C. B. o. (1921). Laws and Regulations Relative to Certification of Teachers. Washington, D.C..

Chicago (17e ed.) Bronvermelding

Education, National Catholic Welfare Council.; Bureau of. Laws and Regulations Relative to Certification of Teachers. Washington, D.C., 1921.

MLA (8e ed.) Bronvermelding

Education, National Catholic Welfare Council.; Bureau of. Laws and Regulations Relative to Certification of Teachers. Washington, D.C., 1921.