APA (7th ed.) Citation

Leppard, D. (1990). The directory of work & study in developing countries (2. ed.). Vacation work.

Chicago Style (17th ed.) Citation

Leppard, David. The Directory of Work & Study in Developing Countries. 2. ed. Oxford: Vacation work, 1990.

MLA (9th ed.) Citation

Leppard, David. The Directory of Work & Study in Developing Countries. 2. ed. Vacation work, 1990.