APA (7th ed.) Citation

Johnson, N. K. (1963). Biosystematics of sibling species of flycatchers in the Empidonax hammondii-oberholseri-wrightii complex. Univ. of California Press.

Chicago Style (17th ed.) Citation

Johnson, Ned K. Biosystematics of Sibling Species of Flycatchers in the Empidonax Hammondii-oberholseri-wrightii Complex. Berkeley u.a: Univ. of California Press, 1963.

MLA (9th ed.) Citation

Johnson, Ned K. Biosystematics of Sibling Species of Flycatchers in the Empidonax Hammondii-oberholseri-wrightii Complex. Univ. of California Press, 1963.