Cita APA (7th ed.)

Grocke, D., Hesselbo, S., & Jenkyns, H. (1999). Carbon-isotope composition of Lower Cretaceous fossil wood: Ocean-atmosphere chemistry and relation to sea-level change.

Cita Chicago (17th ed.)

Grocke, DR, S. Hesselbo, i H. Jenkyns. Carbon-isotope Composition of Lower Cretaceous Fossil Wood: Ocean-atmosphere Chemistry and Relation to Sea-level Change. 1999.

Cita MLA (9th ed.)

Grocke, DR, et al. Carbon-isotope Composition of Lower Cretaceous Fossil Wood: Ocean-atmosphere Chemistry and Relation to Sea-level Change. 1999.