APA Style
Bohor, Bruce F.. (1993).
Tonsteins: altered volcanic-ash layers in coal-bearing sequences .
America:
Special Paper.
Chicago Style
Bohor, Bruce F..
Tonsteins: altered volcanic-ash layers in coal-bearing sequences.
America:
Special Paper,
1993.
Buku Teks.
MLA Style
Bohor, Bruce F..
Tonsteins: altered volcanic-ash layers in coal-bearing sequences.
America:
Special Paper,
1993.
Buku Teks.
Turabian Style
Bohor, Bruce F..
Tonsteins: altered volcanic-ash layers in coal-bearing sequences.
America:
Special Paper,
1993.
Buku Teks.