Gaya APA
Oncken, W. (1984).
Managing management time : who's got the monkey ? .
Englewood Cliffs:
Prentce-Hall.
Gaya MLA
Oncken, William.
"Managing management time : who's got the monkey ?".
Englewood Cliffs:
Prentce-Hall,
1984.
Buku/Printed Material.