Citace podle APA (7th ed.)

Longo, R., & Johns, J. (2018). The first Norman cathedral in Palermo. Robert Guiscard's Church of the Most Holy Mother of God. Brepols.

Citace podle Chicago (17th ed.)

Longo, R., a J. Johns. The First Norman Cathedral in Palermo. Robert Guiscard's Church of the Most Holy Mother of God. Brepols, 2018.

Citace podle MLA (9th ed.)

Longo, R., a J. Johns. The First Norman Cathedral in Palermo. Robert Guiscard's Church of the Most Holy Mother of God. Brepols, 2018.

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