Gaya APA
DUNCAN,ERNEST R. ().
MATHEMATICS .
Boston:
Houghton.
Gaya Chicago
DUNCAN,ERNEST R.
MATHEMATICS.
Boston:
Houghton,
.
Book.
Gaya MLA
DUNCAN,ERNEST R.
MATHEMATICS.
Boston:
Houghton,
.
Book.
Gaya Turabian
DUNCAN,ERNEST R.
MATHEMATICS.
Boston:
Houghton,
.
Book.