APA

Davies R., Lloyd K., . (1988). Kew Index for 1987 - Names of seed-bearing plants, ferns, and ferns alli. Oxford, NY: Clarendon Press.

Chicago

Davies R.a, Lloyd K.m, . 1988. Kew Index for 1987 - Names of seed-bearing plants, ferns, and ferns alli. Oxford, NY: Clarendon Press.

Harvard

Davies R., Lloyd K., . (1988). Kew Index for 1987 - Names of seed-bearing plants, ferns, and ferns alli. Oxford, NY: Clarendon Press.

MLA

Davies R.a, Lloyd K.m, . Kew Index for 1987 - Names of seed-bearing plants, ferns, and ferns alli. Oxford, NY: Clarendon Press. 1988.