00931nam a2200265Ia 4500 263117 OCoLC 20160527192851.0 031024s1986 sp b 1 spa d 8471120569 AKR AKR PUXA ev 372.7019 L899g6 E BF723.N8 L6 1972 Lovell, Kenneth. Local 128264 The growth of basic mathematical and scientific concepts in children. Spanish Desarrollo de los conceptos básicos matemáticos y científicos en los niños K. Lovell ; versión española de Orencio Sánchez Manzano. 6a ed. Madrid Ediciones Morata 1986. 213 p. illus. 22 cm. Includes bibliographies and index. Number concept. Local 143769 Child development Local 72561 Conservation Psychology Local 79835 189585 189585 0 0 ddc 0 372_701900000000000_L899G6_E 0 evl 189591 10 10 1 2016-05-27 Spanish Book 19.00 371725 0 372.7019 L899g6 E 80000002170291 2016-05-27 00:00:00 r:263117 6