Use stream of consciousness to answer the following. The term "pink-collar" was popularized in the late 1970s by writer and social critic Louise Kapp Howe to denote women working as nurses, secretaries, and elementary school teachers. Its origins, however, go back to the early 1970s, to when the equal rights amendment, ERA, was placed before the states for ratification (March 1972). At that time, the term was used to denote secretarial and steno-pool staff as well as non-professional office staff, all of which were largely held by women. De rigueur, these positions were not white-collar jobs, but neither were they blue-collar manual labor. Hence, the creation of the term "pink collar," which indicated it was not white-collar but was nonetheless an office job, one that was overwhelmingly filled by women.

Answer this question based on the passage: is nursing a blue collar or white collar job?
To answer the above question, the relevant sentence is: The term "pink-collar" was popularized in the late 1970s by writer and social critic Louise Kapp Howe to denote women working as nurses, secretaries, and elementary school teachers. Final answer: pink - collar.