APA

Timmermann G., . (1952). The species of the genus Quadraceps (Mallophaga) from the Larinae, with some remarks on the systematics and phylogeny of the gulls. : .

Chicago

Timmermann G, . 1952. The species of the genus Quadraceps (Mallophaga) from the Larinae, with some remarks on the systematics and phylogeny of the gulls. : .

Harvard

Timmermann G., . (1952). The species of the genus Quadraceps (Mallophaga) from the Larinae, with some remarks on the systematics and phylogeny of the gulls. : .

MLA

Timmermann G, . The species of the genus Quadraceps (Mallophaga) from the Larinae, with some remarks on the systematics and phylogeny of the gulls. : . 1952.