APA

Har Narain Singh, . (1956). Formulation of criteria, in the light of commonly accepted objecties of geography-teaching, for the selection and writing of text-books in geography for higher secondary classes (IX, X, XI), and evaluation of some georgraphy text-books prescribed by the U. : .

Chicago

Har Narain Singh, . 1956. Formulation of criteria, in the light of commonly accepted objecties of geography-teaching, for the selection and writing of text-books in geography for higher secondary classes (IX, X, XI), and evaluation of some georgraphy text-books prescribed by the U. : .

Harvard

Har Narain Singh, . (1956). Formulation of criteria, in the light of commonly accepted objecties of geography-teaching, for the selection and writing of text-books in geography for higher secondary classes (IX, X, XI), and evaluation of some georgraphy text-books prescribed by the U. : .

MLA

Har Narain Singh, . Formulation of criteria, in the light of commonly accepted objecties of geography-teaching, for the selection and writing of text-books in geography for higher secondary classes (IX, X, XI), and evaluation of some georgraphy text-books prescribed by the U. : . 1956.