TY - BOOK ID - 129290855 TI - Photoelectric cells : their properties, use, and applications AU - Campbell, Norman Robert AU - Ritchie, Dorothy PY - 1930 PB - London : Pitman, DB - UniCat KW - Photoelectric cells. UR - https://www.unicat.be/uniCat?func=search&query=sysid:129290855 AB - ER -