Gaya APA
Greenwood, I, A., Holdam, J, V.
(1948).
Electronic instruments
(
1948)
.
:
New York : McGraw-Hill,.
Gaya MLA
Greenwood, Ivan, A.., Holdam, J., Vance.
"Electronic instruments".
1948
:
New York : McGraw-Hill,,
1948.
Text.