McLean, R. C. 1890- Practical field ecology : a guide for the botany departments of u niversities, colleges and schools, by R. C. McLean and W. R. Ivimey Cook. - London : Allen & Unwin, 1946. - 216 p. : front. (map) illus., diagrs. ; 19 cm. "First published in 1946." LCCN: 47-019853 Subjects--Topical Terms: Plant ecology. Dewey Class. No.: 581.5 MACL