Here is Eric Drown’s solution for citing the literacy narratives from Rising Cairn. Rising Cairn best resembles an online magazine (an edited compilation of stories by multiple authors).
Little Seagull gives the MLA format for citing an online magazine below:
For MLA format for other publication types (e.g. the scholarly journal articles or essays), see pp. 109-57 or consult SASC’s digest of MLA guidelines here CitationBasics-MLA8.docx