APA-referens (7:e uppl.)

Pearce, C., Hesselbo, S., & Coe, A. (2005). The mid-Oxfordian (Late Jurassic) positive carbon-isotope excursion recognised from fossil wood in the British Isles.

Chicago-referens (17:e uppl.)

Pearce, C., S. Hesselbo, och A. Coe. The Mid-Oxfordian (Late Jurassic) Positive Carbon-isotope Excursion Recognised from Fossil Wood in the British Isles. 2005.

MLA-referens (9:e uppl.)

Pearce, C., et al. The Mid-Oxfordian (Late Jurassic) Positive Carbon-isotope Excursion Recognised from Fossil Wood in the British Isles. 2005.