APA (7th ed.) Citation

Steinmann, V. W., & Ricker, M. Tree and tree-like species of Mexico: Euphorbiaceae, Peraceae, Phyllanthaceae, Picrodendraceae, Putranjivaceae, and Urticaceae. Universidad Nacional Autónoma de México.

Chicago Style (17th ed.) Citation

Steinmann, Victor W., and Martin Ricker. Tree and Tree-like Species of Mexico: Euphorbiaceae, Peraceae, Phyllanthaceae, Picrodendraceae, Putranjivaceae, and Urticaceae. Universidad Nacional Autónoma de México.

MLA (9th ed.) Citation

Steinmann, Victor W., and Martin Ricker. Tree and Tree-like Species of Mexico: Euphorbiaceae, Peraceae, Phyllanthaceae, Picrodendraceae, Putranjivaceae, and Urticaceae. Universidad Nacional Autónoma de México.

Warning: These citations may not always be 100% accurate.