Gaya APA

Heinemann guide to common Epiphytic Ferns of Malaysia & Singapore / Piggott, Audrey. (1979). : Singapore : Heinemann Educational Books (Asia) Ltd.

Gaya MLA

Heinemann guide to common Epiphytic Ferns of Malaysia & Singapore / Piggott, Audrey. Ed. Ke- 1. : Singapore : Heinemann Educational Books (Asia) Ltd, 1979. Text.