Kutsenkow, F. Corinne.
Voices of earth : man's environment / F. Corinne Kutsenkow, Florence Carr Randall, James J. Jones. - Sacramento, Calif. : State Department of Education, 1971. - 107 p. : ill., col. - California state series Voices of life .
Nature--Effect of human beings on
Voices of earth : man's environment / F. Corinne Kutsenkow, Florence Carr Randall, James J. Jones. - Sacramento, Calif. : State Department of Education, 1971. - 107 p. : ill., col. - California state series Voices of life .
Nature--Effect of human beings on