5 1 50 Howard E. Evans Additional Author mixed material Amerika Addison Wesley 1984 Howard Additional Author mixed material 0851993265 Amerika CABI 2000 Howard N. barnum Additional Author lyn squire Additional Author mixed material 0801822254 USA the johns hopkins university press baltimore and london 1979 howard t. odum Additional Author mixed material 9794202568 Yogyakarta GADJAH MADA UNIVERSITY PRESS 1992 howard t. odum Additional Author mixed material 9794202568 Semarang GAJAH MADA UNIVERSITY PREES 1992