@misc{indiciaea850c47d4b13, title = {Textbooks -- a new approach.}, author = {A Marcus and H Hall and R M Harden}, year = {1975}, doi = {10.1111/j.1365-2923.1975.tb01943.x}, url = {https://pubmed.ncbi.nlm.nih.gov/1203208/}, note = {Source identifier: 1203208} }