Herrera, Fabiany, Shi, Gongle, Bickner, Maya A., Ichinnorov, Niiden, Leslie, Andrew B., Crane, Peter R., and Herendeen, Patrick S. Early Cretaceous abietoid Pinaceae from Mongolia and the history of seed scale shedding. Retrieved from https://par.nsf.gov/biblio/10316837. American Journal of Botany 108.8 Web. doi:10.1002/ajb2.1713.

Herrera, Fabiany, Shi, Gongle, Bickner, Maya A., Ichinnorov, Niiden, Leslie, Andrew B., Crane, Peter R., & Herendeen, Patrick S. Early Cretaceous abietoid Pinaceae from Mongolia and the history of seed scale shedding. American Journal of Botany, 108 (8). Retrieved from https://par.nsf.gov/biblio/10316837. https://doi.org/10.1002/ajb2.1713

Herrera, Fabiany, Shi, Gongle, Bickner, Maya A., Ichinnorov, Niiden, Leslie, Andrew B., Crane, Peter R., and Herendeen, Patrick S. "Early Cretaceous abietoid Pinaceae from Mongolia and the history of seed scale shedding". American Journal of Botany 108 (8). Country unknown/Code not available. https://doi.org/10.1002/ajb2.1713. https://par.nsf.gov/biblio/10316837.

@article{osti_10316837,
place = {Country unknown/Code not available}, title = {Early Cretaceous abietoid Pinaceae from Mongolia and the history of seed scale shedding}, url = {https://par.nsf.gov/biblio/10316837}, DOI = {10.1002/ajb2.1713}, abstractNote = {}, journal = {American Journal of Botany}, volume = {108}, number = {8}, author = {Herrera, Fabiany and Shi, Gongle and Bickner, Maya A. and Ichinnorov, Niiden and Leslie, Andrew B. and Crane, Peter R. and Herendeen, Patrick S.}, }