Heise, U. K. Extinction/Adaptation: Ursula K. Heise. Time : a vocabulary of the present.(2016).
Lua i Stíl Chicago (17ú heag.)Heise, Ursula K. "Extinction/Adaptation: Ursula K. Heise." Time : A Vocabulary of the Present.(2016) .
Lua MLA (8ú heag.)Heise, Ursula K. "Extinction/Adaptation: Ursula K. Heise." Time : A Vocabulary of the Present.(2016), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.