APA

Shurly E., . (1952). A supplementary list of specific names and synonyms of Mammillarias -Described 1940-1952- / E. Shurly (comp.). Brighton: The British Section of the International Organisation for Succulent Plant Study.

Chicago

Shurly E, . 1952. A supplementary list of specific names and synonyms of Mammillarias -Described 1940-1952- / E. Shurly (comp.). Brighton: The British Section of the International Organisation for Succulent Plant Study.

Harvard

Shurly E., . (1952). A supplementary list of specific names and synonyms of Mammillarias -Described 1940-1952- / E. Shurly (comp.). Brighton: The British Section of the International Organisation for Succulent Plant Study.

MLA

Shurly E, . A supplementary list of specific names and synonyms of Mammillarias -Described 1940-1952- / E. Shurly (comp.). Brighton: The British Section of the International Organisation for Succulent Plant Study. 1952.