APA (7th ed.) Citation

Tabujara, E. (1980). Structural vibration theory and introduction to seismology. Philippine Engineering Journal.

Chicago Style (17th ed.) Citation

Tabujara, Ernesto. "Structural Vibration Theory and Introduction to Seismology." Philippine Engineering Journal 1980.

MLA (9th ed.) Citation

Tabujara, Ernesto. "Structural Vibration Theory and Introduction to Seismology." Philippine Engineering Journal, 1980.

Warning: These citations may not always be 100% accurate.