Penggayaan APA
HYDROGEN Sulfide.. (1981).
Geneva:
World Health Organization.
Chicago Style
HYDROGEN Sulfide..
.
Geneva:
World Health Organization,
1981.
Buku.
MLA Style
HYDROGEN Sulfide..
.
Geneva:
World Health Organization,
1981.
Buku.
Turabian Style
HYDROGEN Sulfide..
Geneva:
World Health Organization,
1981.
Buku.