TY - GEN TY - GEN T1 - Physical techniques in biological research. Vol. 1, Optical techniques A2 - Oster, Gerald A2 - Pollister, Arthur W. LA - eng PP - New York PB - Academic YR - 1955 UL - https://kansalliskirjasto.finna.fi/Record/fikka.575033 KW - Biology : Physical techniques. KW - Optical instruments. ER -