Valderrama, J. H. (1982). An improvised electric device and suggested laboratory activities to teach the effects of electricity on certain physiological processes in selected seeds.
Lua i Stíl Chicago (17ú heag.)Valderrama, Josefina Husayan. An Improvised Electric Device and Suggested Laboratory Activities to Teach the Effects of Electricity on Certain Physiological Processes in Selected Seeds. 1982.
Lua MLA (8ú heag.)Valderrama, Josefina Husayan. An Improvised Electric Device and Suggested Laboratory Activities to Teach the Effects of Electricity on Certain Physiological Processes in Selected Seeds. 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.