APA (7e ed.) Bronvermelding
Willis, R. (2013). Testing times: A history of vocational, civil service and secondary examinations in England since 1850. Sense Publishers.
Chicago (17e ed.) Bronvermelding
Willis, Richard. Testing Times: A History of Vocational, Civil Service and Secondary Examinations in England Since 1850. Rotterdam, The Netherlands: Sense Publishers, 2013.
MLA (9e ed.) Bronvermelding
Willis, Richard. Testing Times: A History of Vocational, Civil Service and Secondary Examinations in England Since 1850. Sense Publishers, 2013.
Let op: Deze citaties zijn niet altijd 100% accuraat.