Observa E Investiga Mientras Viajas
| Copyright Holder | George Barr (2), William D. Hayes, Editorial Kapelusz, S.A. |
| Publisher | Editorial Kapelusz |
| First Published by | McGraw-Hill Book Company |
| Printed by | Talleres Gráficos Daversa |
| Publisher Series | Colección Club de Ciencias |
| Format | Soft cover |
| Language | Spanish |
| Location | Argentina |
| This Impression | 1980-07 |
| Copyright | 1971 |
| Pages / Font | 142 pages |
| Catalog Number | K - 17.574 |
| Chapters | 15 plus an Introduction. |
| Notes | Consta de 2000 ejemplares. It consists of 2000 copies. |
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