APA (7e ed.) Bronvermelding

Wirdenius, H. (1958). Supervisors at work: Description of supervisor behavior, development of a time-sampling observation method. Swedish Council for Personnel Administration.

Chicago (17e ed.) Bronvermelding

Wirdenius, Hans. Supervisors at Work: Description of Supervisor Behavior, Development of a Time-sampling Observation Method. Stockholm: Swedish Council for Personnel Administration, 1958.

MLA (8e ed.) Bronvermelding

Wirdenius, Hans. Supervisors at Work: Description of Supervisor Behavior, Development of a Time-sampling Observation Method. Swedish Council for Personnel Administration, 1958.