APA
Samuelson P. N. W., . (2015). Microeconomics.-19th ed. New Delhi: McGraw Hill Education.
Chicago
Samuelson Paul Nordhaus William, . 2015. Microeconomics.-19th ed. New Delhi: McGraw Hill Education.
Harvard
Samuelson P. N. W., . (2015). Microeconomics.-19th ed. New Delhi: McGraw Hill Education.
MLA
Samuelson Paul Nordhaus William, . Microeconomics.-19th ed. New Delhi: McGraw Hill Education. 2015.