Herbert, M. (2021). Trouble in Outer Heaven: Portable Ops Plus at Southwark Park Galleries, London. Art Monthly.
Chicago-viite (17. p.)Herbert, Martin. "Trouble in Outer Heaven: Portable Ops Plus at Southwark Park Galleries, London." Art Monthly 2021.
MLA-viite (8. p.)Herbert, Martin. "Trouble in Outer Heaven: Portable Ops Plus at Southwark Park Galleries, London." Art Monthly, 2021.
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