Παραπομπή APA

Collery, A. (1966). National income and employment analysis. John Wiley and Sons.

Παραπομπή Chicago Style

Collery, Arnold. National Income and Employment Analysis. London: John Wiley and Sons, 1966.

Παραπομπή MLA

Collery, Arnold. National Income and Employment Analysis. John Wiley and Sons, 1966.