APA (7th ed.) Citation

O'Regan, R. S., & University of Papua New Guinea. (1972). Pruning the English oak: Public lecture. University of Papua and New Guinea.

Chicago Style (17th ed.) Citation

O'Regan, Robin S., and University of Papua New Guinea. Pruning the English Oak: Public Lecture. [Waigani] ;: University of Papua and New Guinea, 1972.

MLA (9th ed.) Citation

O'Regan, Robin S., and University of Papua New Guinea. Pruning the English Oak: Public Lecture. University of Papua and New Guinea, 1972.