Gaya APA
HUBBARD, L, R. (2012).
EARLY YEARS OF ADVENTURE : LETTERS & JOURNALS .
CALIFORNIA - USA:
BRIDGE PUBLICATION, INC.
Gaya MLA
HUBBARD, L., RON.
"EARLY YEARS OF ADVENTURE : LETTERS & JOURNALS".
CALIFORNIA - USA:
BRIDGE PUBLICATION, INC,
2012.
Umum.