bib types @phdthesis and @mastersthesis converted as @book

[Lu-Yanru]

Examples:

Baker, Mark Cleland. 1985. Incorporation: A Theory of Grammatical Function Changing. Cambridge, MA: Massachusetts Institute of Technology. (PhD dissertation).

@book{Baker1985,
    address = {Cambridge, MA},
    author = {Baker, Mark Cleland},
    note = {(PhD dissertation).},
    publisher = {Massachusetts Institute of Technology},
    title = {Incorporation: {{A}} Theory of Grammatical Function Changing},
    year = {1985}
}

Gray, Hazel. 2013. Locatives in Ikizu. Leiden: Leiden University. (MA thesis).

@book{Gray2013,
    address = {Leiden},
    author = {Gray, Hazel},
    note = {(MA thesis).},
    publisher = {Leiden University},
    title = {Locatives in Ikizu},
    year = {2013}
}