Perry, D. G. (1984). Brachiopoda and biostratigraphy of the Silurian-Devonian Delorme Formation in the District of Mackenzie, the Yukon. Royal Ontario Museum.
Citazione stile Chigago Style (17a edizione)Perry, David G. Brachiopoda and Biostratigraphy of the Silurian-Devonian Delorme Formation in the District of Mackenzie, the Yukon. Toronto: Royal Ontario Museum, 1984.
Citatione MLA (8a ed.)Perry, David G. Brachiopoda and Biostratigraphy of the Silurian-Devonian Delorme Formation in the District of Mackenzie, the Yukon. Royal Ontario Museum, 1984.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.