APA

Roll No. 9, University of Delhi. Faculty of Education. Department of Education & University of Delhi. Faculty of Education. Department of Education. (1970). Investigation into thevocational preferences of secondary school boys of Urban and Rural higher secondary schools of Ropar district (Punjab) in relation ti its man-power deman. : .

Chicago

Roll No. 9, University of Delhi. Faculty of Education. Department of Education and University of Delhi. Faculty of Education. Department of Education. 1970. Investigation into thevocational preferences of secondary school boys of Urban and Rural higher secondary schools of Ropar district (Punjab) in relation ti its man-power deman. : .

Harvard

Roll No. 9, University of Delhi. Faculty of Education. Department of Education and University of Delhi. Faculty of Education. Department of Education. (1970). Investigation into thevocational preferences of secondary school boys of Urban and Rural higher secondary schools of Ropar district (Punjab) in relation ti its man-power deman. : .

MLA

Roll No. 9, University of Delhi. Faculty of Education. Department of Education and University of Delhi. Faculty of Education. Department of Education. Investigation into thevocational preferences of secondary school boys of Urban and Rural higher secondary schools of Ropar district (Punjab) in relation ti its man-power deman. : . 1970.