De la Cruz, A. M. (1977). Academic preparation and work load of college teachers of national agricultural schools and colleges of the Bureau of Vocational Education. University of the Philippines Library.
芝加哥风格引文De la Cruz, Andres Marcos. Academic Preparation and Work Load of College Teachers of National Agricultural Schools and Colleges of the Bureau of Vocational Education. Quezon City: University of the Philippines Library, 1977.
MLA引文De la Cruz, Andres Marcos. Academic Preparation and Work Load of College Teachers of National Agricultural Schools and Colleges of the Bureau of Vocational Education. University of the Philippines Library, 1977.
警告：这些引文格式不一定是100％准确.