Leslie, Andrew B., Beaulieu, Jeremy, Holman, Garth, Campbell, Christopher S., Mei, Wenbin, Raubeson, Linda R., and Mathews, Sarah. An overview of extant conifer evolution from the perspective of the fossil record. American Journal of Botany 105.9 Web. doi:10.1002/ajb2.1143.

Leslie, Andrew B., Beaulieu, Jeremy, Holman, Garth, Campbell, Christopher S., Mei, Wenbin, Raubeson, Linda R., & Mathews, Sarah. An overview of extant conifer evolution from the perspective of the fossil record. American Journal of Botany, 105 (9). https://doi.org/10.1002/ajb2.1143

Leslie, Andrew B., Beaulieu, Jeremy, Holman, Garth, Campbell, Christopher S., Mei, Wenbin, Raubeson, Linda R., and Mathews, Sarah. "An overview of extant conifer evolution from the perspective of the fossil record". American Journal of Botany 105 (9). United States: Wiley Blackwell (John Wiley & Sons). https://doi.org/10.1002/ajb2.1143. https://par.nsf.gov/biblio/10073653.

@article{osti_10073653,
place = {United States}, title = {An overview of extant conifer evolution from the perspective of the fossil record}, url = {https://par.nsf.gov/biblio/10073653}, DOI = {10.1002/ajb2.1143}, abstractNote = {Not Available}, journal = {American Journal of Botany}, volume = {105}, number = {9}, publisher = {Wiley Blackwell (John Wiley & Sons)}, author = {Leslie, Andrew B. and Beaulieu, Jeremy and Holman, Garth and Campbell, Christopher S. and Mei, Wenbin and Raubeson, Linda R. and Mathews, Sarah}, }