APA
Sladen E., McKinlay R. A. j. a., . (1947). Threshold to business. London: G. G. Harrap.
Chicago
Sladen Edward, McKinlay R A joint author, . 1947. Threshold to business. London: G. G. Harrap.
Harvard
Sladen E., McKinlay R. A. j. a., . (1947). Threshold to business. London: G. G. Harrap.
MLA
Sladen Edward, McKinlay R A joint author, . Threshold to business. London: G. G. Harrap. 1947.