APA-čujuhus (7. p.)
Gelder, E. (1991). The Transistor as af-amplifier: Output stages. Wiley Eastern.
Chicago-čujuhus (17. p.)
Gelder, Erich. The Transistor as Af-amplifier: Output Stages. Calcutta: Wiley Eastern, 1991.
MLA-čujuhus (9. p.)
Gelder, Erich. The Transistor as Af-amplifier: Output Stages. Wiley Eastern, 1991.
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