Used availability for Isaac Asimov's What Causes Acid Rain?
Hardback Editions
June 1994 : UK Hardback

Title: Ask Isaac Asimov: What causes acid rain? (Cased)
Author(s): Isaac Asimov
ISBN: 0-431-07642-1 / 978-0-431-07642-3 (UK edition)
Publisher: Heinemann Library
Availability:
Amazon Amazon UK Amazon CA April 1992 : USA Library Binding

Title: What Causes Acid Rain? (Ask Isaac Asimov)
Author(s): Isaac Asimov
ISBN: 0-8368-0741-3 / 978-0-8368-0741-7 (USA edition)
Publisher: Gareth Stevens Pub
Availability:
Amazon Amazon UK Amazon CA