Enrile, J. P. Speech of Defense Secretary Juan Ponce Enrile at the Oath-taking Ceremonies for successful examinees of the Board of Examinations for Mechanical Engineers, sponsored by the Philippine Society of Mechanical Engineers, Manila Hotel, February 25, 1973.
Chicago-viite (17. p.)Enrile, Juan Ponce. Speech of Defense Secretary Juan Ponce Enrile at the Oath-taking Ceremonies for Successful Examinees of the Board of Examinations for Mechanical Engineers, Sponsored by the Philippine Society of Mechanical Engineers, Manila Hotel, February 25, 1973.
MLA-viite (9. p.)Enrile, Juan Ponce. Speech of Defense Secretary Juan Ponce Enrile at the Oath-taking Ceremonies for Successful Examinees of the Board of Examinations for Mechanical Engineers, Sponsored by the Philippine Society of Mechanical Engineers, Manila Hotel, February 25, 1973.