Gaya APA
I.L.ELLIOT, ., W.K.Fletcher, . (1975).
Geochemical Exloration 1974 .
Amsterdam:
Elsevier Scientific Publishing Company.
Gaya MLA
I.L.ELLIOT, ., W.K.Fletcher, .
"Geochemical Exloration 1974".
Amsterdam:
Elsevier Scientific Publishing Company,
1975.
Textbook.