Title of article :
Videolabs in behavioural observation. Volume 1. focussing in : By & . (1993). Available from Noldus Information Technology b.v., Costerweg 5, 6702 A A Wageningen, The Netherlands. Duration 50 min. Price NLG 495
Author/Authors :
M. H. Hansell، نويسنده , , Edward P. Monaghan، نويسنده ,
