APA

Heiken G., . (1974). An atlas of volcanic ash. Washington: Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.].

Chicago

Heiken Grant, . 1974. An atlas of volcanic ash. Washington: Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.].

Harvard

Heiken G., . (1974). An atlas of volcanic ash. Washington: Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.].

MLA

Heiken Grant, . An atlas of volcanic ash. Washington: Smithsonian Institution Press; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]. 1974.