Ong, P. K. (1990). Guidance needs as perceived by lower secondary pupils and their teachers.
Chicago Style (17th ed.) CitationOng, Phiak Kim. Guidance Needs as Perceived by Lower Secondary Pupils and Their Teachers. 1990.
MLA引文Ong, Phiak Kim. Guidance Needs as Perceived by Lower Secondary Pupils and Their Teachers. 1990.
警告：这些引文格式不一定是100％准确.