Gaya APA
Enviromental Health Criteria 18 Arsenic. (1981).
Malang Kota:
WHO Geneva.
Gaya Chicago
Enviromental Health Criteria 18 Arsenic.
.
Malang Kota:
WHO Geneva,
1981.
Text.
Gaya MLA
Enviromental Health Criteria 18 Arsenic.
.
Malang Kota:
WHO Geneva,
1981.
Text.
Gaya Turabian
Enviromental Health Criteria 18 Arsenic.
Malang Kota:
WHO Geneva,
1981.
Print.