APA

Barber M. E., Barber F. W., . (1898). The Erythrina tree. London: Rowland Ward.

Chicago

Barber M E, Barber F W, . 1898. The Erythrina tree. London: Rowland Ward.

Harvard

Barber M. E., Barber F. W., . (1898). The Erythrina tree. London: Rowland Ward.

MLA

Barber M E, Barber F W, . The Erythrina tree. London: Rowland Ward. 1898.