APA (7th ed.) Citation

Gregorio, E. G. (1980). A practical guide to irrigation canal design. Philippine Engineering Journal.

Chicago Style (17th ed.) Citation

Gregorio, Enrico G. "A Practical Guide to Irrigation Canal Design." Philippine Engineering Journal 1980.

MLA (9th ed.) Citation

Gregorio, Enrico G. "A Practical Guide to Irrigation Canal Design." Philippine Engineering Journal, 1980.

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