Philp, R. K. (1911). Enquire within upon everything (109th ed.). Simpkin, Marshall, Hamilton, Kent & Co..
Lua i Stíl Chicago (17ú heag.)Philp, Robert Kemp. Enquire Within upon Everything. 109th ed. London: Simpkin, Marshall, Hamilton, Kent & Co., 1911.
Lua MLA (8ú heag.)Philp, Robert Kemp. Enquire Within upon Everything. 109th ed. Simpkin, Marshall, Hamilton, Kent & Co., 1911.
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