APA (7th ed.) Citation

Durand, T., & Durand, H. (1909). Sylloge florae congolanae: Phanerogamae. Maison A. de Boeck.

Chicago Style (17th ed.) Citation

Durand, Th., and Hélène Durand. Sylloge Florae Congolanae: Phanerogamae. Bruxelles: Maison A. de Boeck, 1909.

MLA (8th ed.) Citation

Durand, Th., and Hélène Durand. Sylloge Florae Congolanae: Phanerogamae. Maison A. de Boeck, 1909.

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