1997 - Periodicity and the S and Pblock Elements [Oxford Chemistry Primers, 51] (Paperback) ISBN-13: 9780198559610 ISBN-10: 0198559615 Genres: Science & Math, Engineering & Transportation ? 1994 - Periodicity and the Pblock Elements [Oxford Chemistry Primers, 16] (Paperback) ISBN-13: 9780198557630 ISBN-10: 0198557639 Genre: Science & Math ? 1994 - Periodicity and the Pblock Elements (Hardcover) ISBN-13: 9780198557647 ISBN-10: 0198557647 Genre: Science & Math ? |