APA (7th ed.) Citation

Purcell, P. G. (1970). A pictorial guide to the P41 Madang Block, New Guinea and the (1969) Madang Seismic Survey. [s.n.].

Chicago Style (17th ed.) Citation

Purcell, P. G. A Pictorial Guide to the P41 Madang Block, New Guinea and the (1969) Madang Seismic Survey. [s.l.: [s.n.], 1970.

MLA (9th ed.) Citation

Purcell, P. G. A Pictorial Guide to the P41 Madang Block, New Guinea and the (1969) Madang Seismic Survey. [s.n.], 1970.