Cita APA (7a ed.)

Brennan, M. J. (1969). People and their environment: Teachers' curriculum guide to conservation education. J. G. Ferguson Pub. Co.

Cita Chicago Style (17a ed.)

Brennan, Matthew J. People and Their Environment: Teachers' Curriculum Guide to Conservation Education. Chicago: J. G. Ferguson Pub. Co, 1969.

Cita MLA (9a ed.)

Brennan, Matthew J. People and Their Environment: Teachers' Curriculum Guide to Conservation Education. J. G. Ferguson Pub. Co, 1969.