APA Style
Saad, Hanafi, Sagala, B. D. (1990).
Quarterly progress report for the period ending 31 st March 1990 .
Bukittinggi:
PT Antam Barisan Mining.
Chicago Style
Saad, Hanafi, Sagala, B. D.
Quarterly progress report for the period ending 31 st March 1990.
Bukittinggi:
PT Antam Barisan Mining,
1990.
Text.
MLA Style
Saad, Hanafi, Sagala, B. D.
Quarterly progress report for the period ending 31 st March 1990.
Bukittinggi:
PT Antam Barisan Mining,
1990.
Text.
Turabian Style
Saad, Hanafi, Sagala, B. D.
Quarterly progress report for the period ending 31 st March 1990.
Bukittinggi:
PT Antam Barisan Mining,
1990.
Print.