M S Laverack. (1963). Physiology of earthworms V 15. Oxford.
Chicago Edition CitationM S Laverack. Physiology of Earthworms V 15. Oxford, 1963.
MLA Edition CitationM S Laverack. Physiology of Earthworms V 15. Oxford, 1963.
Warning: These citations may not always be 100% accurate.