APA

Emery F. E., Trist E. L., Emery F. E. & Trist E. (1975). Towards a social ecology. London [u.a.]: Plenum Publ.

Chicago

Emery Frederick E, Trist Eric L, Emery Frederick Edmund and Trist Eric. 1975. Towards a social ecology. London [u.a.]: Plenum Publ.

Harvard

Emery F. E., Trist E. L., Emery F. E. and Trist E. (1975). Towards a social ecology. London [u.a.]: Plenum Publ.

MLA

Emery Frederick E, Trist Eric L, Emery Frederick Edmund and Trist Eric. Towards a social ecology. London [u.a.]: Plenum Publ. 1975.