APA-referens (7:e uppl.)
Trewin, N. H. (2008). Fossils alive! or, new walks in an old field: A series of ten illustrated time-travel excursions into the geological past, experiencing the faunas and floras, lakes and rivers, geysers and volcanoes that have contributed to the ancient history of Scotland. Dunedin.
Chicago-referens (17:e uppl.)
Trewin, N. H. Fossils Alive! or, New Walks in an Old Field: A Series of Ten Illustrated Time-travel Excursions into the Geological Past, Experiencing the Faunas and Floras, Lakes and Rivers, Geysers and Volcanoes That Have Contributed to the Ancient History of Scotland. Edinburgh: Dunedin, 2008.
MLA-referens (9:e uppl.)
Trewin, N. H. Fossils Alive! or, New Walks in an Old Field: A Series of Ten Illustrated Time-travel Excursions into the Geological Past, Experiencing the Faunas and Floras, Lakes and Rivers, Geysers and Volcanoes That Have Contributed to the Ancient History of Scotland. Dunedin, 2008.
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