APA (7th ed.) Citation

Elkan, W. (1973). An introduction to development economics. Penguin Books.

Chicago Style (17th ed.) Citation

Elkan, Walter. An Introduction to Development Economics. Harmondsworth, Mx: Penguin Books, 1973.

MLA (9th ed.) Citation

Elkan, Walter. An Introduction to Development Economics. Penguin Books, 1973.

Warning: These citations may not always be 100% accurate.