Gaya APA

HARDJONO, . (1971). On The Cement Raw Materials Of The Ndjodjaja, (S. Tjibadak) West Java, Indonesia (A Summary) . Bandung: Geology Survey Of Indonesia Exploration Division.

Gaya MLA

HARDJONO, . "On The Cement Raw Materials Of The Ndjodjaja, (S. Tjibadak) West Java, Indonesia (A Summary)". Bandung: Geology Survey Of Indonesia Exploration Division, 1971. Bukan Logam.