APA
Gelder E., . (1991). Transistor as AF-Amplifier-23. New Delhi: Wiley Eastern Limited.
Chicago
Gelder Erich, . 1991. Transistor as AF-Amplifier-23. New Delhi: Wiley Eastern Limited.
Harvard
Gelder E., . (1991). Transistor as AF-Amplifier-23. New Delhi: Wiley Eastern Limited.
MLA
Gelder Erich, . Transistor as AF-Amplifier-23. New Delhi: Wiley Eastern Limited. 1991.