Gaya APA
Elmer, W, B.
(1980).
The optical design of reflectors
(
2nd.ed.)
.
New York:
John Wiley \\n Sons.
Gaya MLA
Elmer, William, B..
"The optical design of reflectors".
2nd.ed.
New York:
John Wiley \\n Sons,
1980.
Text.