Citação norma APA

Singh,M P. (1991). Nitrogen fixing and multipurpose tree species for afforestation. Today and Tomarrow`s Printers and Publishers.

Citação norma Chicago

Singh,M P. Nitrogen Fixing and Multipurpose Tree Species for Afforestation. New Delhi: Today and Tomarrow`s Printers and Publishers, 1991.

Citação norma MLA

Singh,M P. Nitrogen Fixing and Multipurpose Tree Species for Afforestation. Today and Tomarrow`s Printers and Publishers, 1991.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.