APA-čujuhus (7. p.)
Clayton, A. E., & Hancock, N. N. The Performance and design of direct current machines (3rd ed.). CBS Pub.
Chicago-čujuhus (17. p.)
Clayton, Albert E., juo N. N. Hancock. The Performance and Design of Direct Current Machines. 3rd ed. New Delhi: CBS Pub.
MLA-čujuhus (9. p.)
Clayton, Albert E., juo N. N. Hancock. The Performance and Design of Direct Current Machines. 3rd ed. CBS Pub.
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