APA (7e ed.) Bronvermelding

Hall, F. (1939). Statistical measurement in group work; a manual on statistical records for use by staff members. Print. Off.

Chicago (17e ed.) Bronvermelding

Hall, Frances. Statistical Measurement in Group Work; a Manual on Statistical Records for Use by Staff Members. Washington, U.S. Govt: Print. Off, 1939.

MLA (9e ed.) Bronvermelding

Hall, Frances. Statistical Measurement in Group Work; a Manual on Statistical Records for Use by Staff Members. Print. Off, 1939.