The abilities of man : their nature and measurement

MLA

Spearman, Charles Edward. The Abilities of Man : Their Nature and Measurement. London: Macmillan, 1927.

APA

Spearman, C. Edward. (1927). The abilities of man : their nature and measurement. London: Macmillan.

Chicago

Spearman, Charles Edward, The Abilities of Man: Their Nature and Measurement. London: Macmillan, 1927.