Hans Jürgen Eysenck and Sybil B. G. Eysenck. Manual of the Eysenck Personality Questionnaire. Hodder & Stoughton, London, 1975.
@book{eysenck_manual_1975,
address = {London},
author = {Eysenck, Hans J\"urgen and Eysenck, Sybil B. G.},
publisher = {{Hodder \& Stoughton}},
title = {Manual of the {{Eysenck Personality Questionnaire}}},
year = {1975}
}