Gaya APA
KEEDY, M, L., NELSON, C, W. (1965).
Geometry : a modern introduction .
Addison-Wesley:
Reading, Massachusetts.
Gaya MLA
KEEDY, Mervin, L.., NELSON, Charles, W.
"Geometry : a modern introduction".
Addison-Wesley:
Reading, Massachusetts,
1965.
Buku.