McMillan, P. D., Wyatt, G., & Morris, R. (2006). The Begonia of Veracruz: Additions and revisions. Instituto de Ecología, A.C.
Chicago-viite (17. p.)McMillan, Patrick D., Graham Wyatt, ja Rekha Morris. The Begonia of Veracruz: Additions and Revisions. Instituto de Ecología, A.C, 2006.
MLA-viite (9. p.)McMillan, Patrick D., et al. The Begonia of Veracruz: Additions and Revisions. Instituto de Ecología, A.C, 2006.