2 literature references for Pinus palustris Mill.:

Author: Grimshaw, J. & Bayton, R.
Year: 2009
Title: New trees (recent introductions to cultivation)
Source: Kew Publishing, Royal Botanic Gardens, Kew
Author: Mill.
Year: 1768
Title:
Source: In: Gard. Dict., ed. 8: Pinus No. 14.