00317nam a2200109Ia 450000500170000000800410001708200150005810000280007324500470010126000510014830000080019920260225051045.0260224s9999||||xx |||||||||||||| ||und||  a581.87 PAN  aNickolas J. Panopoulos  0aGenetic engineering in the plant sciences   aNew York: Praeger Scientific Publishers c1981  a271