Perspectives on Mathematics Education Mathematics Education Library, nr. 2 Editat de H. Christiansen et al. 31 dec 1985 Paperback Preț: 642.43 lei 755.81 lei 6-8 săpt. -15%
Epistemological and Social Problems of the Sciences in the Early Nineteenth Century Editat de H. N. Jahnke et al. 31 ian 1981 Hardback Preț: 989.29 lei 1206.45 lei 6-8 săpt. -18%