Blacker, C. P. Birth control and the state.
Lua i Stíl Chicago (17ú heag.)Blacker, C. P. Birth Control and the State.
Lua MLA (9ú heag.)Blacker, C. P. Birth Control and the State.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.