Parsons, Richard. AS & A2 biology : exam board : OCR : complete revision and practice / AS & A2 biology for OCR AS/A2 biology for OCR [Richard Parsons] - Kirkby-in-Furness : Coordination Group Pub., 2009. - 244 p. : col. ill. ; 30 cm. Includes index. AS-level biology : exam board : OCR -- A2-level biology : exam board : OCR ISBN: 9781847624246 (pbk.) 1847624243 (pbk.) Subjects--Topical Terms: Biology--Examinations--Study guides. Dewey Class. No.: 570 / PAR 2009