Palmer, H. E., & Blanford, F. G. (1969). A grammar of spoken english (3rd ed. ; rev. and rewritten by Roger Kingdon.). Heffer.
Chicago-viite (17. p.)Palmer, Harold E., ja Francis George Blanford. A Grammar of Spoken English. 3rd ed. ; rev. and rewritten by Roger Kingdon. Cambridge: Heffer, 1969.
MLA-viite (9. p.)Palmer, Harold E., ja Francis George Blanford. A Grammar of Spoken English. 3rd ed. ; rev. and rewritten by Roger Kingdon. Heffer, 1969.
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