APA (7th ed.) Citation

GRAYSON, L. E. National oil Companies#Leslie E. Grayson. John Wiley and Sons.

Chicago Style (17th ed.) Citation

GRAYSON, Leslie E. National Oil Companies#Leslie E. Grayson. John Wiley and Sons.

MLA (8th ed.) Citation

GRAYSON, Leslie E. National Oil Companies#Leslie E. Grayson. John Wiley and Sons.

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