APA (7e ed.) Bronvermelding

Leas, S. (1978). Time management: A working guide for church leaders. Abingdon Press.

Chicago (17e ed.) Bronvermelding

Leas, Speed. Time Management: A Working Guide for Church Leaders. Nashville: Abingdon Press, 1978.

MLA (8e ed.) Bronvermelding

Leas, Speed. Time Management: A Working Guide for Church Leaders. Abingdon Press, 1978.