APA (7th ed.) Citation

Royen, P. v. (1980). The alpine flora of New Guinea. Cramer.

Chicago Style (17th ed.) Citation

Royen, P. van. The Alpine Flora of New Guinea. Vaduz, [Liechtenstein ]: Cramer, 1980.

MLA (9th ed.) Citation

Royen, P. van. The Alpine Flora of New Guinea. Cramer, 1980.