Gaya APA
Cornerstones From Calling. (1987).
Jakarta:
Harvest Publication House.
Gaya Chicago
Cornerstones From Calling.
Kesatu.
Jakarta:
Harvest Publication House,
1987.
.
Gaya MLA
Cornerstones From Calling.
Kesatu.
Jakarta:
Harvest Publication House,
1987.
.
Gaya Turabian
Cornerstones From Calling.
Jakarta:
Harvest Publication House,
1987.
.