Παραπομπή APA

Pyatt & Thorbocke Erik. (1976). Planning techniques for a better future. Oxford & IBH publishing company.

Παραπομπή Chicago Style

Pyatt και Thorbocke Erik. Planning Techniques for a Better Future. New Delhi: Oxford & IBH publishing company, 1976.

Παραπομπή MLA

Pyatt και Thorbocke Erik. Planning Techniques for a Better Future. Oxford & IBH publishing company, 1976.