APA Style
Block, Marilyn R. (c1999.).
dentifying environmental aspects and impacts .
Milwaukee, Wis:
Usaha Nasional.
Chicago Style
Block, Marilyn R.
dentifying environmental aspects and impacts.
Milwaukee, Wis:
Usaha Nasional,
c1999..
Buku Teks.
MLA Style
Block, Marilyn R.
dentifying environmental aspects and impacts.
Milwaukee, Wis:
Usaha Nasional,
c1999..
Buku Teks.
Turabian Style
Block, Marilyn R.
dentifying environmental aspects and impacts.
Milwaukee, Wis:
Usaha Nasional,
c1999..
Buku Teks.