Gaya APA
MORRIS, P, A.
(1973).
A FIELD GUIDE TO SHELLS OF THE ATLANTIC
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BOSTON:
HOUGHTON MIFFLIN.
Gaya MLA
MORRIS, PERCY, A..
"A FIELD GUIDE TO SHELLS OF THE ATLANTIC".
BOSTON:
HOUGHTON MIFFLIN,
1973.
Prodi S1 Budidaya Perairan.