Gowans, A. The Popular Arts and Universal History: New Principles for historical study using arts and artifacts. Festschrift Klaus Lankheit zum 20. Mai 1973.
Lua i Stíl Chicago (17ú heag.)Gowans, Alan. "The Popular Arts and Universal History: New Principles for Historical Study Using Arts and Artifacts." Festschrift Klaus Lankheit Zum 20. Mai 1973 .
Lua MLA (8ú heag.)Gowans, Alan. "The Popular Arts and Universal History: New Principles for Historical Study Using Arts and Artifacts." Festschrift Klaus Lankheit Zum 20. Mai 1973, .
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