APA

Donaldson S, . (1988). Hold On, mr. President. N.-Y: Ballantine Books.

Chicago

Donaldson S, . 1988. Hold On, mr. President. N.-Y: Ballantine Books.

Harvard

Donaldson S, . (1988). Hold On, mr. President. N.-Y: Ballantine Books.

MLA

Donaldson S, . Hold On, mr. President. N.-Y: Ballantine Books. 1988.