APA

Kohls G. M., Clifford C. M. & Hoogstraal H. (1969). Two new species of Ornithodoros from the Galápagos Islands (Acarina, Argasidae). : .

Chicago

Kohls Glen M, Clifford Carleton M and Hoogstraal Harry. 1969. Two new species of Ornithodoros from the Galápagos Islands (Acarina, Argasidae). : .

Harvard

Kohls G. M., Clifford C. M. and Hoogstraal H. (1969). Two new species of Ornithodoros from the Galápagos Islands (Acarina, Argasidae). : .

MLA

Kohls Glen M, Clifford Carleton M and Hoogstraal Harry. Two new species of Ornithodoros from the Galápagos Islands (Acarina, Argasidae). : . 1969.