APA Style
Sagala, B. D. (1988).
Quarterly progress report for the period ending June 30, 1988: Prospect 9756 .
Bukittinggi:
PT Antam Barisan Mining.
Chicago Style
Sagala, B. D.
Quarterly progress report for the period ending June 30, 1988: Prospect 9756.
Bukittinggi:
PT Antam Barisan Mining,
1988.
Text.
MLA Style
Sagala, B. D.
Quarterly progress report for the period ending June 30, 1988: Prospect 9756.
Bukittinggi:
PT Antam Barisan Mining,
1988.
Text.
Turabian Style
Sagala, B. D.
Quarterly progress report for the period ending June 30, 1988: Prospect 9756.
Bukittinggi:
PT Antam Barisan Mining,
1988.
Print.