Cita APA (7a ed.)

Goriup,Paul D. (1988). Ecology and Conservation of Grassland birds. World Conference of the International Council for bird preservation. International Council of Bird Preservation.

Cita Chicago Style (17a ed.)

Goriup,Paul D. Ecology and Conservation of Grassland Birds. World Conference of the International Council for Bird Preservation. Cambridge - INGL: International Council of Bird Preservation, 1988.

Cita MLA (8a ed.)

Goriup,Paul D. Ecology and Conservation of Grassland Birds. World Conference of the International Council for Bird Preservation. International Council of Bird Preservation, 1988.