Gordon M. Sessions, 78, a retired public relations consultant and freelance writer, died of cardiac fibrillation Wednesday at Suburban Hospital in Bethesda.

Mr. Sessions was born in the District of Columbia and grew up in South Dakota.He attended Iowa State University and Northwestern University and was a newspaperman in Sioux Falls, S.D., and Chicago. He also worked for the Associated Press in Chicago.*tHe returned to Washington In 1941, and the following year became director of public relations for the Petroleum Administration for War. He also was assistant to the President of the Petroleum Reserves Corp., a part of the War Assets Administration, and was a member of the American delegation to a conference in London in 1945 to 1964, Mr. Sessions was a partner in the public relations firm of Sessions and Caminita. The firm was dissolved in 1964 and Mr. Sessions became a free-lance writer and on transportation, traffic safety and related subjects and a public relations consultant. He retired in the early 1970s.

He as a member of Sigma Delta Chi, a honorary journalism Society, and of the National Press Club.

Survivors include hie wife, Kay, of the home in Bethesda, and a daughter, Nancy Edwards, of Washington.