Chew, L. C. (1990). Career maturity and career guidance needs of students in a secondary school.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Chew, Lee Chin. Career Maturity and Career Guidance Needs of Students in a Secondary School. 1990.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Chew, Lee Chin. Career Maturity and Career Guidance Needs of Students in a Secondary School. 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.