APA
Collier I. L., . (1985). Effective Purchasing Power in a Quantity Constraint Economy: An Estimate for the German Democratic Republic. : .
Chicago
Collier Irwin L, . 1985. Effective Purchasing Power in a Quantity Constraint Economy: An Estimate for the German Democratic Republic. : .
Harvard
Collier I. L., . (1985). Effective Purchasing Power in a Quantity Constraint Economy: An Estimate for the German Democratic Republic. : .
MLA
Collier Irwin L, . Effective Purchasing Power in a Quantity Constraint Economy: An Estimate for the German Democratic Republic. : . 1985.