(1985). Standard Methods. APHA.
Chicago Style aipamenaStandard Methods. APHA, 1985.
MLA aipamenaStandard Methods. APHA, 1985.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena
(1985). Standard Methods. APHA.
Chicago Style aipamenaStandard Methods. APHA, 1985.
MLA aipamenaStandard Methods. APHA, 1985.