Mayer-Gross, Henry Report and other items : report on the nest record scheme 1959 / by H. Mayer-Gross. -- [S.l.] : [s.n.], 1960 - p.241-247 Separata de: Bird Study, vol.7, n.4. Subjects--Topical Terms: Aves - Control biológicoAves - Reproducción Universal Decimal Class. No.: 591.56:598.2