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- ISBN 978-0-200-71099-2 The World of Carbon (1958), Abelard-Schuman, ISBN 978-0-02-091350-4 The World of Nitrogen (1958), Abelard-Schuman, ISBN 978-0-02-091400-6...188 KB (21,064 words) - 20:42, 25 October 2024
- ISBN 0-200-71099-0 ISBN 978-0-200-71099-2 The World of Carbon (1958) ISBN 978-0-02-091350-4 The World of Nitrogen (1958) ISBN 978-0-02-091400-6 Life and Energy...63 KB (8,179 words) - 18:40, 21 August 2024