Science General How Long Have We Got? by (author) Ritchie Calder Publisher McGill-Queen's University Press Initial publish date Jan 1972 Category General all formats (1)Toggle all formats (1) eBook ISBN 9780773592513 Publish Date Jan 1972 Classroom Resources Share it Email Facebook Twitter Book added to list! Where to buy it Indigo Find a Wholesaler About the author Ritchie Calder's profile page