Cita APA (7a ed.)
ebrary, Inc, & Machin, D. (2009). Sample size tables for clinical studies (3rd ed.). Wiley-Blackwell.
Cita Chicago Style (17a ed.)
ebrary, Inc, y David Machin. Sample Size Tables for Clinical Studies. 3rd ed. Chichester, UK ; Hoboken, NJ: Wiley-Blackwell, 2009.
Cita MLA (9a ed.)
ebrary, Inc, y David Machin. Sample Size Tables for Clinical Studies. 3rd ed. Wiley-Blackwell, 2009.
Precaución: Estas citas no son 100% exactas.