APA-viite (7. p.)

Van Zyl, J. C. (1970). An econometric analysis of the consumption function in South Africa. s.n.].

Chicago-viite (17. p.)

Van Zyl, Johannes Christiaan. An Econometric Analysis of the Consumption Function in South Africa. [S.l.: s.n.], 1970.

MLA-viite (8. p.)

Van Zyl, Johannes Christiaan. An Econometric Analysis of the Consumption Function in South Africa. s.n.], 1970.