APA
Ngugi E. N., . (1986). Practical notes on nursing procedures. New York: Churchill Livingstone.
Chicago
Ngugi E N, . 1986. Practical notes on nursing procedures. New York: Churchill Livingstone.
Harvard
Ngugi E. N., . (1986). Practical notes on nursing procedures. New York: Churchill Livingstone.
MLA
Ngugi E N, . Practical notes on nursing procedures. New York: Churchill Livingstone. 1986.