Cabrera, M. P. Relevance of transducers in industrial electronics. Philippine Engineering Journal.
Chicago-viite (17. p.)Cabrera, Macario P. "Relevance of Transducers in Industrial Electronics." Philippine Engineering Journal .
MLA-viite (9. p.)Cabrera, Macario P. "Relevance of Transducers in Industrial Electronics." Philippine Engineering Journal, .
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.