TECHNICAL CARD Data of the book: Format: 29.5 cm. x 21 cm. Weight: 620 g. Amount of pages: 212 Amount of diagrams: 333 Original project: Ricardo Héctor Petrelli Víctor Daniel Petrelli. Literary corrector: Ricardo Alejandro Mayr Design of the covers: Ricardo Héctor Petrelli, Fernando Rius, Daniel Canteros. Illustrations by computation: Fernando Rius, Santiago Oviedo, Daniel Canteros. Photomechanical and printing: Rodolfo Oscar Meneghini. Printed in Argentina. First editing: year 1997. Edition: 1,000 units I.S.B.N.: 987-9062-06-X. Data of the publishing house: Editorial September Price of each unit: u$s 25. - : teoria@datamarkets.com.ar