APA
(1973). Regional geography: North America Europe Soviet Union: A textbook for secondary schools. New Delhi, India: National Council of Educational Research and Training.
Chicago
1973. Regional geography: North America Europe Soviet Union: A textbook for secondary schools. New Delhi, India: National Council of Educational Research and Training.
Harvard
(1973). Regional geography: North America Europe Soviet Union: A textbook for secondary schools. New Delhi, India: National Council of Educational Research and Training.
MLA
Regional geography: North America Europe Soviet Union: A textbook for secondary schools. New Delhi, India: National Council of Educational Research and Training. 1973.
