1988 - Plowman's Folly and a Second Look [Conservation Classics] (Hardcover) → Paperback ISBN-13: 9780933280519 ISBN-10: 0933280513 Genres: Business & Money, History, Science & Math ? 1987 - Plowman's Folly and a Second Look [Conservation Classics] (Paperback) → Hardcover ISBN-13: 9780933280434 ISBN-10: 0933280432 ? |