PRIMACKA, R. B. (1995). A Primer Of Conservation Biology /Richard B. Primack. Saunder.
Lua i Stíl Chicago (17ú heag.)PRIMACKA, Richard B. A Primer Of Conservation Biology /Richard B. Primack. Saunder, 1995.
Lua MLA (8ú heag.)PRIMACKA, Richard B. A Primer Of Conservation Biology /Richard B. Primack. Saunder, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.