Wall, C. E., & Alkire, L. G. (1969). Periodical title abbreviations. Gale Research.
Cita Chicago Style (17a ed.)Wall, C. Edward, y Leland G. Alkire. Periodical Title Abbreviations. Detroit: Gale Research, 1969.
Cita MLA (9a ed.)Wall, C. Edward, y Leland G. Alkire. Periodical Title Abbreviations. Gale Research, 1969.
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