I'm interested in building a data visualization to learn more about the history of the DSM. (I'm inspired by this visualization of the edit history of Darwin's "Origin of Species" by Ben Fry, as well as these journal articles about DSM history.)
Not being a psychologist or med student myself, is it a non-starter to try and obtain past texts in electronic form (i.e. as data)? Does anyone have suggestions of where to start looking/asking?