APA استشهاد

Helleiner, G. K. (1981). Intra- firm trade and the developing countries. Macmillan press.

استشهاد بنمط شيكاغو

Helleiner, Gerald K. Intra- Firm Trade and the Developing Countries. London: Macmillan press, 1981.

MLA استشهاد

Helleiner, Gerald K. Intra- Firm Trade and the Developing Countries. Macmillan press, 1981.