Gaya APA
Alec, Mackenzie. (1980).
Time Management .
California:
Alec Mackenzie and Associates .
Gaya Chicago
Alec, Mackenzie.
Time Management.
California:
Alec Mackenzie and Associates ,
1980.
Text.
Gaya MLA
Alec, Mackenzie.
Time Management.
California:
Alec Mackenzie and Associates ,
1980.
Text.
Gaya Turabian
Alec, Mackenzie.
Time Management.
California:
Alec Mackenzie and Associates ,
1980.
Print.