Gaya APA
KEEDY, M, L., Nelson, C, W. (1965).
GEOMETRY A MODERN INTRODUCTION .
Reading, Massachusetts:
Addison-Wesley.
Gaya MLA
KEEDY, Mervin, L.., Nelson, Charles, W..
"GEOMETRY A MODERN INTRODUCTION".
Reading, Massachusetts:
Addison-Wesley,
1965.
Textbook.