APA (7th ed.) Citation

Psacharopoulos, G. (1973). Returns to education: An international comparison. Elsevier.

Chicago Style (17th ed.) Citation

Psacharopoulos, George. Returns to Education: An International Comparison. Amsterdam [u.a.]: Elsevier, 1973.

MLA (9th ed.) Citation

Psacharopoulos, George. Returns to Education: An International Comparison. Elsevier, 1973.

Warning: These citations may not always be 100% accurate.