TY - BOOK T1 - Neutrality control in the living organism a learning program for students of the biological and medical sciences. A1 - Christensen, Halvor N. LA - English PP - Philadelphia PB - Saunders YR - 1971 UL - https://tuklas.up.edu.ph/Record/UP-1685523046125085886 OP - 160 CN - QP34 C57 1971 KW - Acid : Base equilibrium : Programmed instruction. KW - Hydrogenion concentration : Programmed instruction. ER -