Gaya APA

Douglass, M, E., Douglass, D, N. (1985). Manage your Time, Manage your Work, Manage Yourself (pertama). USA: Amacom.

Gaya MLA

Douglass, Merril, E.., Douglass, Donna, N.. "Manage your Time, Manage your Work, Manage Yourself". pertama USA: Amacom, 1985. Teksbook.