APA
Chu K., . (1968). Principles of econometrics. Pennsylvania: Internaional textbook Company.
Chicago
Chu Kong, . 1968. Principles of econometrics. Pennsylvania: Internaional textbook Company.
Harvard
Chu K., . (1968). Principles of econometrics. Pennsylvania: Internaional textbook Company.
MLA
Chu Kong, . Principles of econometrics. Pennsylvania: Internaional textbook Company. 1968.