Cita APA

Fritsch, E. C. (1955). Science teaching aids for a stronger America. s.n.

Citación estilo Chicago

Fritsch, Emery C. Science Teaching Aids for a Stronger America. Illinois: s.n, 1955.

Cita MLA

Fritsch, Emery C. Science Teaching Aids for a Stronger America. s.n, 1955.

Warning: These citations may not always be 100% accurate.