APA (7th ed.) Citation

Ballard, P. B. (1934). Group tests of intelligence (Primera edición.). University of London Press.

Chicago Style (17th ed.) Citation

Ballard, Philip Boswood. Group Tests of Intelligence. Primera edición. London: University of London Press, 1934.

MLA (8th ed.) Citation

Ballard, Philip Boswood. Group Tests of Intelligence. Primera edición. University of London Press, 1934.

Warning: These citations may not always be 100% accurate.