Voluntary public disclosure of finances by evangelical Christian organizations was urged by representatives of 30 such groups at a meeting here.

They acted in response to proposed federal legislation that would force them and other charities to reveal the percentage of money going for charitable purposes as opposed to operating costs.

Self-policing is the better approach, the evangelical Christian representatives decided.

They approved creation of a committee to establish uniform financial standards. That committee was directed to do "a feasibility study on implementing uniform standards to one or more certifying bodies."

George M. Wilson, executive vice president of the Billy Graham Evangelistic Association, and Dr. W. Stanley Mooneyham, president of World Vision, who called the meeting here, were named cochairmen to create such a committee and come up with recommendations.

About 45 persons attended the meeting. They were "almost 100 per cent opposed" to measures proposed in Congress to require national charities to tell what percentage of their revenue is spent on overhead and what is used for charitable purposes.

Wilson said the actions taken were in line with those adopted recently by the National Conference of Catholic Bishops and the Interdenominational Foreign Mission Association.

The Catholic bishops, at their meeting in Washington in November, adopted guidelines on fund-raising that call for regular audits of Catholic fund-raisers' books and disclosure of the amount collected and given to the collected and given to the charitable causes.

The Billy Graham Association in October made public its financial statement for the first time.

Action on the Senate bill won't come before next year.