APA
Ojha R. R., Bir A. R. & Ojha R. R. (1988). National income acounting. New Delhi: Sterling Publishers.
Chicago
Ojha R R, Bir Avnita R and Ojha R R. 1988. National income acounting. New Delhi: Sterling Publishers.
Harvard
Ojha R. R., Bir A. R. and Ojha R. R. (1988). National income acounting. New Delhi: Sterling Publishers.
MLA
Ojha R R, Bir Avnita R and Ojha R R. National income acounting. New Delhi: Sterling Publishers. 1988.