APA

Simkin T., . (1977). Historic volcanism and eruption forecasting in Latin America. : .

Chicago

Simkin Tom, . 1977. Historic volcanism and eruption forecasting in Latin America. : .

Harvard

Simkin T., . (1977). Historic volcanism and eruption forecasting in Latin America. : .

MLA

Simkin Tom, . Historic volcanism and eruption forecasting in Latin America. : . 1977.