Hemerocallis : day lilliess

MLA

Erhardt, Walter, Alexander Helm, and Diana Grenfill. Hemerocallis : Day Lilliess. London: B.T. Batsford, 1992.

APA

Erhardt, W., Helm, A., & Grenfill, D. (1992). Hemerocallis : day lilliess. London: B.T. Batsford.

Chicago

Erhardt, Walter, Alexander Helm, and Diana Grenfill. Hemerocallis : Day Lilliess. London: B.T. Batsford, 1992.