Blok, H. (1970). Diffraction theory of open resonators. Bronder-Offset.
Lua i Stíl Chicago (17ú heag.)Blok, H. Diffraction Theory of Open Resonators. Rotterdam: Bronder-Offset, 1970.
Lua MLA (8ú heag.)Blok, H. Diffraction Theory of Open Resonators. Bronder-Offset, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.