APA aipamena

P Jayasree & Sivadasan K R,Guide. (1987). Extent Of Concrete And Formal Thinking Abilities Linked To Age And Environment Of High School Science Students In Kerala State. Dept of Education,University of Kerala.

Chicago Style aipamena

P Jayasree and Sivadasan K R,Guide. Extent Of Concrete And Formal Thinking Abilities Linked To Age And Environment Of High School Science Students In Kerala State. Thiruvananthapuram: Dept of Education,University of Kerala, 1987.

MLA aipamena

P Jayasree and Sivadasan K R,Guide. Extent Of Concrete And Formal Thinking Abilities Linked To Age And Environment Of High School Science Students In Kerala State. Dept of Education,University of Kerala, 1987.