APA
Graymoor Ecumenical Institute, National Council of the Churches of Christ in the United States of America, . (1972). Ecumenical trends. [Garrison, N.Y.]: Graymoor Ecumenical Institute.
Chicago
Graymoor Ecumenical Institute, National Council of the Churches of Christ in the United States of America, . 1972. Ecumenical trends. [Garrison, N.Y.]: Graymoor Ecumenical Institute.
Harvard
Graymoor Ecumenical Institute, National Council of the Churches of Christ in the United States of America, . (1972). Ecumenical trends. [Garrison, N.Y.]: Graymoor Ecumenical Institute.
MLA
Graymoor Ecumenical Institute, National Council of the Churches of Christ in the United States of America, . Ecumenical trends. [Garrison, N.Y.]: Graymoor Ecumenical Institute. 1972.
