Guerra, P. M. (1969). Problem solving approach in health education. s.n.].
Chicago Style (17th ed.) CitationGuerra, Pacita M. Problem Solving Approach in Health Education. [Quezon City: s.n.], 1969.
MLA (9th ed.) CitationGuerra, Pacita M. Problem Solving Approach in Health Education. s.n.], 1969.
Warning: These citations may not always be 100% accurate.