APA
Ryff P. P. D. &. K. J., . (1982). Electrical mechanies and transformers. Prentice-Hall, America: .
Chicago
Ryff Peter Platnick David & Karnas Joseph, . 1982. Electrical mechanies and transformers. Prentice-Hall, America: .
Harvard
Ryff P. P. D. &. K. J., . (1982). Electrical mechanies and transformers. Prentice-Hall, America: .
MLA
Ryff Peter Platnick David & Karnas Joseph, . Electrical mechanies and transformers. Prentice-Hall, America: . 1982.