APA

Johnson ML (ed.), . (1949). New Biology : English Lakes and their Development, Slugs in our Garden, Grassland Agronomy, On Breaking a Bone, Famous Plants - Volvox, Famous Animals - Hydra, New Light on the origin of Vertebrates, Life Cycle of Malaria Parasite - 6. LONDON: PENGUIN BOOKS.

Chicago

Johnson ML (ed.), . 1949. New Biology : English Lakes and their Development, Slugs in our Garden, Grassland Agronomy, On Breaking a Bone, Famous Plants - Volvox, Famous Animals - Hydra, New Light on the origin of Vertebrates, Life Cycle of Malaria Parasite - 6. LONDON: PENGUIN BOOKS.

Harvard

Johnson ML (ed.), . (1949). New Biology : English Lakes and their Development, Slugs in our Garden, Grassland Agronomy, On Breaking a Bone, Famous Plants - Volvox, Famous Animals - Hydra, New Light on the origin of Vertebrates, Life Cycle of Malaria Parasite - 6. LONDON: PENGUIN BOOKS.

MLA

Johnson ML (ed.), . New Biology : English Lakes and their Development, Slugs in our Garden, Grassland Agronomy, On Breaking a Bone, Famous Plants - Volvox, Famous Animals - Hydra, New Light on the origin of Vertebrates, Life Cycle of Malaria Parasite - 6. LONDON: PENGUIN BOOKS. 1949.