APA
Lange O., Walker A. H., . (1983). Political economy 2. Oxford: Pergamon Press.
Chicago
Lange Oskar, Walker A H, . 1983. Political economy 2. Oxford: Pergamon Press.
Harvard
Lange O., Walker A. H., . (1983). Political economy 2. Oxford: Pergamon Press.
MLA
Lange Oskar, Walker A H, . Political economy 2. Oxford: Pergamon Press. 1983.
