APA (7th ed.) Citation

New Zealand. Geophysical Survey. (1965). Gravity map of New Zealand, 1: 250,000. Department of Scientific and Industrial Research.

Chicago Style (17th ed.) Citation

New Zealand. Geophysical Survey. Gravity Map of New Zealand, 1: 250,000. [Wellington]: Department of Scientific and Industrial Research, 1965.

MLA (9th ed.) Citation

New Zealand. Geophysical Survey. Gravity Map of New Zealand, 1: 250,000. Department of Scientific and Industrial Research, 1965.