Não informado. (1964). Scientia paedagogica experimentalis. Centre for Experimental Educational Research.
Style de citation Chicago (17e éd.)Não informado. Scientia Paedagogica Experimentalis. Gent, Belgica: Centre for Experimental Educational Research, 1964.
Style de citation MLA (8e éd.)Não informado. Scientia Paedagogica Experimentalis. Centre for Experimental Educational Research, 1964.
Attention : ces citations peuvent ne pas être correctes à 100%.